Syncfusion Essential Studio Document SDK Versions

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Version 2026 Volume 2 (34.1.33) (28 juil. 2026)

Découvrez les nouveautés dans chaque version, avec des détails sur les fonctionnalités, les améliorations et les problèmes résolus.

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Syncfusion Essential Studio Document SDK 2026 Volume 2 (34.1.32)21 juil. 2026
Fonctionnalités
  • PDF Library
    • .NET PDF Library
      • Updated the Blink binaries used in the HTML to PDF converter from version 147.0.7727.56 to 149.0.7827.156.
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue that caused PDF merge operations to fail with an exception when parsing width table arrays containing CR/LF characters.
      • Resolved an issue where an exception was thrown while saving a specific PDF document.
      • Fixed an issue where an exception was thrown while converting images to PDF.
  • Word Library
    • .NET Word Library
      • The ArgumentOutOfRangeException is no longer thrown for fixed-layout tables during Word-to-PDF conversion.
      • The Table of Contents is now updated correctly for empty list paragraphs after calling the UpdateTableOfContents API.
      • The NullReferenceException is no longer thrown when opening a DOCX document that contains footnotes.
      • The Page field is now rendered as text instead of a hyperlink during Word-to-PDF conversion.
      • Text width is now applied correctly to Telugu text during Word-to-PDF conversion.
      • The list order is now preserved correctly in RTL tables during Word-to-PDF conversion.
      • The ArgumentOutOfRangeException will no longer be thrown during Word-to-PDF conversion for documents containing multiple columns with section breaks.
Syncfusion Essential Studio Document SDK 2026 Volume 2 (34.1.31)14 juil. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where the text extraction collection was not generated correctly for a specific rotated PDF document.
      • Resolved a PDF/A-2b validation failure for a specific PDF document caused by missing embedded fonts in XObjects.
      • Resolved an issue where German umlaut characters were displayed incorrectly after PDF/A conversion.
      • Resolved an issue where TextSearchOptions.WholeWords incorrectly matched partial numeric text within larger words.
      • Resolved an issue where certain text content was missing during text extraction.
Syncfusion Essential Studio Document SDK 2026 Volume 2 (34.1.30)9 juil. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where text annotation positions were inconsistent when importing annotations in JSON format.
      • Fixed an issue where FindText failed to return the correct bounds for CropBox documents.
      • Fixed an issue where the PDF file size increased after converting TIFF files to PDF.
      • Fixed an issue where annotations were not removed after redaction in rotated PDF documents.
      • Resolved a problem that caused certain fields to be missed when merging documents.
      • Fixed the issue where comment replies and annotation status were missing on duplicated pages.
      • Fixed the issue where the signature field position changed after flattening a customer-provided document.
      • Resolved an issue where images in PDF documents turned black after compression in PdfLoadedDocument.
    • JavaScript PDF Library
      • Resolved an issue where the combo box field font and color properties were returned as undefined.
      • Resolved an issue where free text annotations became invisible when appearance rendering was enabled.
      • Resolved an issue where textbox field text was not preserved after rotation.
      • Resolved a script error that occurred during annotation export and import when handling special characters.
Syncfusion Essential Studio Document SDK 2026 Volume 2 (34.1.29)Version majeure6 juil. 2026
Fonctionnalités
  • AI solutions
    • AI Agent Tools - Syncfusion Document SDK AI Agent Tools is a .NET library that gives AI agents real, deterministic document processing capabilities. Instead of relying on large language models to guess document structures or generate fragile glue code, your agents can now call production-ready tools powered by the Syncfusion Document SDK. No document processing logic is required in your host application. This library is available via the Syncfusion.DocumentSDK.AI.AgentTools NuGet package. It's compatible with .NET 8.0, 9.0, and 10.0. Key features:
      • Comprehensive built-in tools: Prebuilt, AI-callable tools covering the full document processing spectrum-PDF (create, redact, sign, OCR, encrypt, merge, compress), Word (mail merge, track changes, compare, convert), Excel (charts, pivot tables, formulas, export), PowerPoint (extract, merge, split, convert), Office-to-PDF conversion, and smart data extraction (tables, forms, and key-value pairs from PDFs and scanned images as structured JSON).
      • Flexible execution architecture: Choose in-memory mode for low-latency execution with automatic cleanup or storage mode with Azure Blob Storage and Amazon S3 support for stateless, horizontally scalable workflows.
      • Fully extensible: Extend the library with your own custom AI agent tools by cloning the open-source repository. Custom tools register alongside built-in tools and are callable by the AI agent in the same way, with no framework changes required.
      • Enterprise-ready: Compatible with OpenAI, Azure OpenAI, Claude, and custom orchestration systems. The tools run fully on-premises or in secure cloud environments, so no documents ever leave your infrastructure. For practical scenarios, refer to the real-world use cases.
    • Agent Skills - Syncfusion Document SDK Agent Skills is a knowledge package that grounds your AI assistant in accurate Syncfusion Document SDK APIs, document processing patterns, and platform-specific configurations. Eliminate AI hallucinations and get production-ready document processing code instantly, directly within your IDE. Agent Skills works with GitHub Copilot, Visual Studio Code, Code Studio, Cursor, Claude, and more. Key features:
      • Broad library coverage: Supports Word (DocIO), PDF, Excel (XlsIO), PowerPoint, Markdown, smart data extraction, and calculate libraries for .NET, Java, Flutter, and JavaScript platforms.
      • Two operating modes: Supports Generate code and csx script modes for flexible document generation workflows.
        • 1. Generate code (mode 1): Triggered by prompts like "how to," "snippet," or "example," it detects your app type, recommends the appropriate NuGet packages, and produces C# code that can be copied and pasted.
        • 2. Execute via csx script (mode 2): Triggered by action-based prompts like "create," "generate," or "open a file," it writes and runs a temporary .csx script to generate the actual document on your machine.
      • One-command install: Get started quickly with npx skills add syncfusion/document-sdk-skills.
      • Granular skill selection: Install all skills at once or choose only the libraries you need (e.g., –skill syncfusion-dotnet-pdf).
      • Auto-loaded by supported agents: Once installed, skills are automatically detected and loaded automatically with no additional configuration required.
  • New Control
    • .NET Markdown Library - This powerful and lightweight .NET library enables developers to create, read, and edit Markdown documents programmatically. Built with a structured document object model (DOM), it allows precise control over document composition while supporting a wide range of Markdown elements and formatting features. Designed for modern .NET applications, it works without external dependencies and helps streamline document generation workflows. Key features:
      • Document creation with DOM: Create Markdown documents programmatically using a structured and intuitive document object model for better control and maintainability.
      • Rich content support: Add and organize headings, paragraphs, block quotes, thematic breaks, tables, lists, and checkboxes.
      • Advanced text formatting: Apply rich formatting including bold, italic, strikethrough, inline code, subscript, and superscript.
      • Media and linking: Insert images and hyperlinks to enhance document content and interactivity.
      • Code block support: Easily include formatted code blocks for technical documentation and developer-focused content.
      • Supported conversion - Seamlessly convert Markdown to and from multiple popular file formats using Syncfusion libraries:
        • Word documents: Convert Markdown to Word and text formats such as .doc, .docx, .xml, .html, and .rtf, and covert Word documents to Markdown.
        • Excel documents: Convert Excel files to and from Markdown.
        • PowerPoint presentations: Convert PPTX files to Markdown and convert Markdown into PPTX presentations.
        • PDF documents: Convert Markdown to PDF format and convert PDF documents to Markdown.
  • Common
    • Production-ready Library - The below libraries have been developed to meet industry standards and are now marked as production-ready for Data Extraction:
      • Smart Data Extractor: A deterministic C# library that extracts complete document structures from PDFs and images. Designed for .NET workflows, it analyzes visual layout lines, boxes, labels, and alignment to locate and extract elements such as table structure, text elements, images, headers, footers, and form fields with per-field confidence scores for immediate review, export, or integration.
      • Smart Table Extractor: A focused, high-accuracy C# library for detecting and extracting tabular data from scanned images and PDFs. It detects table regions, header rows, columns, and cell spans (merged cells) and provides per-cell confidence scores and structured exports ready for downstream processing.
      • Smart Form Recognizer: A deterministic C# library for .NET that reliably detects form data in PDFs and scanned images. By analyzing visual layout cues—lines, boxes and circles—it locates form regions and extracts common controls (text fields, checkboxes, radio buttons, signatures), producing clean JSON with per-field confidence scores. Where form fields are detected, the library can also produce a fillable PDF with corresponding form fields added for immediate use.
  • JavaScript PDF Library
    • Text element support - PDF text elements enable flexible, layout-aware text rendering in PDFs with support for fonts, styling, alignment, and automatic pagination. They allow precise text placement using coordinates or bounds while flowing content across pages. Ideal for generating dynamic documents such as invoices, reports, forms, and newspaper-style multi-column layouts where content length varies. It ensures consistent formatting, precise alignment, and smooth text flow across pages or columns without manual pagination or layout adjustments.
    • Header and footer templates - Use templates to configure reusable content in the headers and footers of all PDF pages, with reserved layout space to prevent overlap. Include static elements like text, images, and shapes, along with dynamic fields such as page numbers, dates, and times. This functionality is essential when creating multi-page documents such as reports, contracts, or books that require consistent branding, document titles, page numbering across every page without manually repeating content.
    • XMP metadata support - Embed structured, RDF-based XML metadata (title, author, keywords, dates, rights) within PDFs to make them easier to find, improve interoperability, and boost consistency across tools. Ideal for document management and archival workflows where PDFs need to include standardized metadata (such as title, author, and keywords). This metadata can then be used by external systems to enable efficient indexing, searching, categorization, and cross-platform interoperability.
  • .NET PDF Library
    • HTML-to-PDF conversion enhancement - The Blink binaries used in HTML-to-PDF conversion have been updated to version 147.0.7727.56, improving security by addressing known vulnerabilities and ensuring a safer conversion process.
  • .NET Excel Library
    • Place images in cells - The Syncfusion Excel Library now lets users place images directly inside cells, where they automatically move, resize, and align with cell changes. This feature works well for structured data scenarios like product catalogs or reports, ensuring images remain properly aligned during sorting, filtering, or resizing.
    • Excel to Markdown - The Syncfusion Excel Library now supports Excel-to-Markdown conversion, enabling seamless content transformation for documentation and web publishing. This feature extracts cell values, images, and cell formatting into clean, readable Markdown while preserving the Excel layout. It can be used to publish Excel-based reports directly to documentation platforms or websites without manual formatting.
    • Markdown to Excel - The Syncfusion Excel Library now supports Markdown-to-Excel conversion, enabling seamless content transformation for data management. This feature easily maps headings, lists, and content into organized Excel data for data analysis, reporting, or collaborative editing.
  • .NET Word Library
    • Performance improvement - The Syncfusion Word Library now delivers significantly faster clone and merge operations, achieving a performance improvement of up to 70%.
    • HTML parsing enhancement - The Syncfusion Word Library now provides improved HTML parsing with comprehensive support for all attributes inside <p> and <h1>–<h7> tags across all selectors, in alignment with Microsoft Word's capabilities.
  • .NET PowerPoint Library
    • PPTX to Markdown - Introduced support for converting PowerPoint presentations (PPTX) into Markdown format, enabling seamless content transformation for documentation and web publishing. Extract slides, text, and structured elements into clean, readable Markdown while preserving the logical flow of the presentation.
    • Markdown to PPTX - Introduced support for converting Markdown documents into PowerPoint presentations (PPTX), enabling seamless transformation of structured content into visually engaging slides. Easily map headings, lists, and content into slide layouts while preserving document structure.
  • .NET Data Extraction Library
    • Customize image saving - This enhancement allows users to access image data as a stream, giving full control over how images are saved in the Markdown file (either as base64 or as a URL). This is especially useful when the application saves Markdown with images by uploading them to the cloud server storage and referencing the same URL in the Markdown.
    • Configurable OCR settings - This feature allows users to configure OCR settings before extraction. Users can now specify options such as language, Tesseract version, image enhancement mode, and other OCR-related parameters, providing greater control and improved accuracy for text extraction workflows.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.15)23 juin 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where a null exception occurred because LoadedDocument.Actions.BeforeClose.JavaScript was not retained after saving the document.
      • Resolved an issue where the document content was shrinking unexpectedly.
    • JavaScript PDF Library
      • Resolved an issue where blank pages were generated when importing a specified page range from a PDF document.
      • Fixed an issue with incorrect export values for grouped checkboxes.
  • Word Library
    • .NET Word Library
      • Deleted text inside a table will now be preserved properly while converting Word to PDF.
      • Images are now positioned properly inside a center-aligned table cell while converting a Word document to PDF.
      • Page break followed by continuous section break will be applied properly while converting Word to PDF.
      • Table rows with hidden cells will be preserved properly during RTF to PDF conversion.
      • Script Bold Pro font text will be preserved properly in Linux Environment during DOCX to PDF.
      • Line spacing will be now applied properly for text inside table while converting Word to PDF.
  • PowerPoint Library
    • .NET PowerPoint Library
      • PowerPoint Presentation with SVG images will no longer be corrupted while clone and merge.
      • The OverflowException will no longer be thrown when clone and merge a PPTX slide with improper Slide ID.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.13)16 juin 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where an incorrect black image appeared in the conformance-converted document.
      • Fixed an issue that caused blank pages during PDF conformance conversion.
    • JavaScript PDF Library
      • Resolved an issue where the counts of form fields and items were not retrieved correctly.
  • Word Library
    • .NET Word Library
      • Specify line grid spacing value will be applied properly when converting DOCX to PDF.
      • Hyperlink ScreenTip is now preserved properly after calling GetMarkdownText API.
      • Document is no longer being corrupted for shape while converting a RTF to DOCX.
      • List numbering is now preserved properly after calling GetMarkdownText API.
      • Group shape fill format is now applied properly after resave the Word document.
  • PowerPoint Library
    • .NET PowerPoint Library
      • The image with custom path inside chart will be preserved properly when resaving the PPTX document.
      • The cropped SVG images in slide will be preserved properly when resaving the PPTX document.
      • Brightness will be applied properly for SVG image while resaving the PPTX document.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.12)9 juin 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where some text was missing during extraction.
    • JavaScript PDF Library
      • Resolved an issue where annotations were not preserved when updating their bounds in a specific PDF document.
  • Word Library
    • .NET Word Library
      • The NullReferenceException will no longer be thrown while adding comments to inserted revision text.
      • Table cell grid span value is now updated properly after opening the DOCX document.
      • The ArgumentOutOfRangeException will no longer be thrown due to split text while converting Word to PDF.
      • Gradient-filled shapes are now preserved properly during DOCX to PDF conversion.
      • TOC text with right tab is now preserved properly while converting Word to PDF.
      • Table followed by a deleted table position is now positioned properly during DOCX to PDF conversion.
      • Text now preserved properly with deletion text while converting Word to PDF.
      • Table row now preserved properly while converting Word document to PDF.
  • PowerPoint Library
    • .NET PowerPoint Library
      • The image with custom path inside chart will be preserved properly when resaving the PPTX document.
      • The cropped SVG images in slide will be preserved properly when resaving the PPTX document.
      • Brightness will be applied properly for SVG image while resaving the PPTX document.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.10)2 juin 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue that caused a large blank space to appear at the bottom of rows.
      • Fixed the issue where form fields were not being retrieved correctly in the specified document.
    • JavaScript PDF Library
      • Fixed an issue where the URI link annotation was not retained during JSON import.
      • Fixed an issue where client-side exported custom stamp annotations were not displayed on the server side.
      • Fixed an issue where radio button and checkbox states were not correctly retained during FDF imports.
  • Word Library
    • .NET Word Library
      • The InvalidOperationException no longer occurs when saving DOCX document after calling GetAsOneRange API.
      • Page break inside text frame will not be applied during Word to PDF conversion.
      • Table will be preserved properly with proper Shape order index during Word to PDF conversion.
  • Excel Library
    • .NET Excel Library
      • Conditional formatting is now updated correctly when performing the AutoFill (FillCopy) operation.
      • Conditional formatting is properly removed when using the RemoveAt operation on a specified range.
      • The LastRow and ColumnWithoutEmptyCell properties now update accurately for XLSB files.
      • Extra leading spaces in rich text are now handled correctly during Excel-to-PDF conversion.
      • Fixed an issue where cell text was not rendered properly during Excel-to-PDF conversion when the text height exceeded the cell height.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.8)26 mai 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where page bounds values were incorrect in OCRLayout when using Tesseract 5.
      • Resolved an issue where images were incorrectly positioned after enabling OptimizeResource during PDF merging.
      • Fixed an issue where documents lost encryption when written to a stream.
      • Fixed an issue where an argument exception occurred during conformance conversion.
      • Resolved a hanging issue that occurred during PDF document merging.
      • Resolved a hanging issue that occurred while loading the PDF document.
    • JavaScript PDF Library
      • Resolved an issue where document properties were not retained when incremental update was disabled.
      • Resolved an issue where server-side exported annotations containing custom data were incompatible.
      • Resolved an issue where free text annotations using the Times New Roman font were not recognized in Adobe.
  • Word Library
    • .NET Word Library
      • Image is now preserved properly during converting a Word document to PDF.
      • Text is now wrapped properly in Word to PDF conversion when there is a shape inside floating table.
      • Script Bold Pro font text will be preserved properly during DOCX to PDF.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.7)19 mai 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved a null reference exception that occurred when extracting images from certain PDF documents.
      • Fixed an issue where text search results included unintended ignored spaces when using text search options.
      • Fixed an Index Out of Bounds exception that occurred after removing scripts from a PDF document.
      • Resolved an issue where the font size of free text annotations was inconsistent in a specific document.
    • JavaScript PDF Library
      • Resolved an issue where the form field page was incorrectly shown as undefined when parsing a specific PDF document.
      • Fixed a script error that occurred during the export of form fields to JSON format.
  • Word Library
    • .NET Word Library
      • AltChunk header content is now preserved properly after converting a RTF document to DOCX.
      • The NullReferenceException will no longer be thrown while opening a DOCX document with shape.
      • Header text with multiple tabs is now preserved properly while converting a Word document to PDF.
      • Auto-hyphenated text is now preserved properly for a justified para while converting a Word document to PDF.
      • Comment references is now applied properly in footnote after resaving the DOCX document.
  • Excel Library
    • .NET Excel Library
      • Fixed an issue where converting XLSB to XLSX caused an exception due to incorrect parsing of named range array formulas. Worksheet connection named ranges serialized properly with table names.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.6)12 mai 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed the issue where a stack overflow exception occurred while merging the document.
      • Fixed the issue where loaded page templates were rendering inverted images when the BBox was rotated.
      • Fixed the issue where grid pagination did not enforce the maximum pagination height.
      • Fixed the issue where Incorrect Image Color Rendering After Merging Multiple PDFs.
      • Fixed the issue where Link annotation is not preserved after importing the annotation in JSON format.
    • JavaScript PDF Library
      • Resolved an issue where form fields were not correctly retrieved from a specific PDF document.
      • Resolved a performance issue encountered during the import of annotations in JSON format.
  • Word Library
    • .NET Word Library
      • Alternate Chunk header text is now preserved properly during converting a DOCX document to PDF.
      • Destination document styles are now applied properly after inserting HTML using the AppendHTML API.
      • The InvalidOperationException will no longer be occur after adding a comment range to deleted revision text.
      • Auto-hyphenated text will now preserved properly for a word that is split while converting Word to PDF.
      • Hanging will no longer occurs due to a table having the Keep With Next property during DOCX to PDF.
      • Text form fields will be preserved properly for multi-line paragraphs when converting DOCX to PDF.
  • Excel Library
    • .NET Excel Library
      • Fixed an exception that occurred when applying template marker with a date as text.
      • Resolved corruption issues when resaving Excel files with grouped shapes.
      • DateTime formulas are now handled correctly during Excel to PDF conversion.
      • Radar chart axis lines are now properly visible in the created Excel document.
      • Dot dash type is now preserved correctly when resaving Excel document.
  • PowerPoint Library
    • .NET PowerPoint Library
      • The cropped SVG images in layout slide will be preserved properly when resaving the PPTX document.
      • PlaceHolderFormat will be preserved properly when clone and merge a slide with customized layout index.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.5)5 mai 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where text was not extracted correctly from a specific PDF document.
      • Resolved an issue where an IndexOutOfRangeException occurred after removing scripts from a PDF document.
      • Resolved an issue where an exception occurred during PDF compression.
      • Resolved an issue where text spacing was incorrect when using DrawString while merging a loaded PDF document.
      • Resolved an issue where the output PDF became corrupted after inserting pages from the source document.
      • Resolved an issue where an exception was thrown while parsing a PdfLoadedButtonField in a PDF document.
    • JavaScript PDF Library
      • Resolved an issue where incorrect bounds collection values were returned for text markup annotations.
      • Resolved an issue where hyperlink annotation bounds were not defined when licensing was enabled.
  • Word Library
    • .NET Word Library
      • List type is now preserved properly after calling ImportContent API.
      • Table cell width for vertically merged cells is now preserved properly while converting DOCX format document to PDF.
      • The NullReferenceException will no longer be thrown when converting a DOCX document to HTML.
      • Autofit table column width are now preserved properly while converting a Word document to PDF.
      • Table cell width is now preserved properly while converting a RTF document to DOCX.
      • List font size is now preserved properly while converting DOCX format document to PDF.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.4)28 avr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where Thai text was not preserved correctly when drawing strings in PDF documents.
      • Fixed an issue where a CheckBox field was not checked correctly when the field was set to read-only.
      • Resolved the issue where the signature was not preserved after flattening the PDF document.
    • JavaScript PDF Library
      • Fixed an issue where an invalid or unexpected token exception occurred while adding accented characters.
      • Fixed an issue where ordered form fields did not return the correct tab order for a specific document.
      • Fixed an issue that caused PDF corruption during annotation export and import in JSON format.
      • Fixed an issue where the stamp appearance was not preserved when importing annotations.
      • Fixed an issue where the document became corrupted during redaction for a specific file.
      • Resolved an issue where text content in a PDF grid cell was truncated when the cell contained large amounts of data.
  • Word Library
    • .NET Word Library
      • Font are now preserved properly when resaving a DOCX document.
      • Table is now indented properly after appending HTML content using AppendHTML API.
      • Shapes are now preserved properly while converting a Word document to PDF.
      • Table cell width is now preserved properly while converting a RTF document to DOCX.
      • Autofit table column width are now preserved properly while converting a Word document to PDF.
      • The StackOverflowException will no longer be thrown due to table with keep with next tag while converting Word to PDF.
      • Text with multiple continuous section break is now preserved properly while converting Word to PDF.
      • Numbered text with decimal characters is now preserved properly in different culture variants while converting Word to PDF.
      • Hanging issue will no longer occur due to multi column with footnote while converting Word to PDF.
      • Nested table split to next page is now properly preserved during Word to PDF conversion.
Syncfusion Essential Studio Document SDK 2026 Volume 1 SP1 (33.2.3)21 avr. 2026
Fonctionnalités
  • Smart Data Extraction Library
    • Smart Data Extractor
      • Added support for converting PDF documents into Markdown content in Smart Data Extraction library.
      • The following are common PDF elements that are preserved when converted to Markdown.
        • Header, Paragraph Title, Document Title.
        • Paragraph.
        • Image.
        • Table.
        • Text Inline Styles.
        • Link text without title text.
        • Code blocks, Footer, Page Number, List, Block quotes, Subscript, Superscript.
    • Smart Table Extractor
      • Added support for converting PDF documents into Markdown content in Smart Table Extraction library.
      • The following are table elements in PDF documents that are preserved when converted to Markdown.
        • Table.
        • Text Inline Styles.
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved a PDF/A compliance issue related to incorrect custom metadata schema definitions.
    • JavaScript PDF Library
      • Fixed a return type mismatch error that caused a compile-time interface violation.
      • Fixed an issue where signature position is not preserved correctly after flattening the signature.
      • Fixed a performance issue when rendering PNG images in page graphics.
      • Fixed an issue where the example code snippets missed for the properties and methods in documentation.
      • Fixed an issue where combo box field color is not visible in chrome and edge browsers.
  • Excel Library
    • .NET Excel Library
      • Fixed an issue where category axis label text was not being cropped correctly when exporting a chart to an image if the label text exceeded the plot area width.
      • Fixed an issue with AutoFill - FillWeekdays for multi-cell source ranges to ensure the correct weekday progression is preserved.
Syncfusion Essential Studio Document SDK 2026 Volume 1 (33.1.49)14 avr. 2026
Corrections
  • Word Library
    • .NET Word Library
      • The ArgumentOutOfRangeException will no longer be thrown due to multiple continuous break while converting Word document to PDF.
      • Numbered lists within fields are now preserved correctly during Word to PDF conversion.
      • Watermark height is now preserved properly during DOCX to PDF conversion on the .NET Framework.
      • Hyphenation enabled split text range width is now properly applied while converting Word to PDF.
      • Decimal tab with multiple paragraphs is now preserved properly while converting Word to PDF.
      • SmartArt Arrow Pointer will be preserved properly during DOCX to PDF.
      • Table within list is now indented properly after appending HTML content using AppendHTML API.
      • Style formatting is now preserved correctly after appending HTML content using AppendHtML API.
  • Excel Library
    • .NET Excel Library
      • Pivot table EnableDrill default value being interpreted as false instead of true is now resolved.
      • Exception thrown while parsing cell style information in an XLSB document is now resolved.
      • Cross-sheet formula references are now retrieved properly when sorting.
      • Enhanced Excel-to-PDF performance by skipping zero-size shapes and unnecessary non-merged range processing.
      • Vertical secondary axis number format is now properly serialized while saving the document.
Syncfusion Essential Studio Document SDK 2026 Volume 1 (33.1.47)7 avr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue causing the OrderFormFields API to incorrectly preserve the tab order of PDF form fields.
    • JavaScript PDF Library
      • Addressed an issue with incorrect retrieval of form field names in a specific PDF document.
      • Resolved an issue where the signature was not preserved correctly after flattening the PDF document.
      • Resolved an issue that caused PDF corruption during the redaction process for a specific document.
      • Resolved an issue where the checkbox form field state was not returned correctly.
  • Word Library
    • .NET Word Library
      • Textbox with bottom extent are now preserved properly while converting a RTF document to PDF.
      • Latin character is now preserved properly during converting a HTML document to DOCX.
      • Autofit table with undefined cell widths are now preserved properly while converting a DOCX document to PDF.
      • Document with revisions will no longer be corrupted after calling UpdateTableOfContents API.
      • The ArgumentOutOfRangeException will no longer be thrown while converting a DOCX format document with Autofit table to PDF.
      • VML Group Shape contains picture is now preserved properly while converting a DOCX document to PDF.
      • Text form fields will be preserved properly with carriage return character during DOCX to PDF.
      • The NullReferenceException will no longer thrown due to multiple paragraphs contained field while converting Word document to PDF.
      • Hanging issue will no longer occur due to dynamic re-layout while converting a DOCX with multi-column to PDF.
  • PowerPoint Library
    • .NET PowerPoint Library
      • The ArgumentOutOfRangeException will no longer be thrown while converting PowerPoint Presentation with invalid table row span to PDF.
Syncfusion Essential Studio Document SDK 2026 Volume 1 (33.1.46)31 mars 2026
Corrections
  • Web PDF Viewer (Javascript, Angular, React, Vue, ASP.NET Core & MVC)
    • Fixed an issue where the browser default print dialog appeared even when enablePrint was set to false while the PDF Viewer was in focus.
    • Resolved an exception that occurred when printing a PDF in Microsoft Edge with the AlwaysOpenPdfExternally policy enabled.
    • Fixed an issue where Free Text annotation bounds were incorrectly exported after updating bounds using the editAnnotation method.
    • Resolved an issue where the findText method returned incorrect bound values for PDF documents that contain CropBox and MediaBox values.
    • Fixed an issue where annotations were not rendered in Standalone rendering mode for the customer provided PDF document.
  • WPF PDF Viewer
    • InvalidCastException will no longer be thrown while clicking Custom stamp menu.
    • Incorrect page deletion will no longer occur in Organize page.
    • Improved memory optimization while adding and removing annotation programmatically.
  • Web DOCX Editor (Javascript, Angular, React, Vue, ASP.NET Core & MVC) and Blazor DOCX Editor
    • Fixed an issue where underline formatting was not removed when choosing Ignore Once.
    • Resolved text overlapping issues when using both machine fonts and the custom font API.
    • Fixed an issue where the font size dropdown did not allow setting half-point values.
    • Fixed an issue where automatic hyperlink conversion failed for long links.
    • Resolved an issue where pasting text added an unwanted closing HTML tag.
    • Fixed multiple issues related to spell check.
    • Fixed a script error that occurred when copying the entire document content using Ctrl + A and Ctrl + C.
    • Fixed an issue where deleting text caused content to shift to an extra page.
    • Fixed an issue where drag-and-drop incorrectly allowed content to be moved into non-editable regions.
    • Resolved a browser freezing issue that occurred when continuously pasting content with spell check enabled.
    • Fixed an issue where page numbers were displayed incorrectly for partially numbered sections.
    • Fixed an issue where the date picker was unresponsive when selecting Today.
    • Resolved an issue where table positioning shifted when toggling between layouts.
    • Fixed an issue where the ribbon remained active when the document was read-only.
    • Improved usability when resizing by fixing issues with grabbing borders.
    • Fixed table formatting misalignment that occurred after saving and reopening the document.
    • Fixed an issue where English text was not appended correctly after Arabic input.
    • Fixed an issue where line spacing values were not retained after being set.
    • Fixed an issue where empty comments were added for other users in Web Layout mode during collaborative editing.
    • Fixed an issue where the Form Field pop-up appeared during multiple selection.
    • Fixed an auto-save script error that occurred during initialization.
  • Blazor DOCX Editor
    • Resolved an issue with the Undo button in Form Fields.
    • Fixed an issue where invalid input was permitted in specialized date and number Form Fields.
    • Fixed an issue where the Track Changes pane remained visible when revisions were hidden.
  • WPF DOCX Editor and UWP DOCX Editor
    • The ArgumentOutOfRangeException is no longer thrown when loading documents containing ZWJ‑based inlines.
  • Blazor Spreadsheet Editor
    • Fixed an exception that occurred when loading a corrupted or unsupported Excel file in the spreadsheet.
Syncfusion Essential Studio Document SDK 2026 Volume 1 (33.1.45)24 mars 2026
Fonctionnalités
  • PDF Library
    • .NET PDF Library
      • Optimized the PDF library by removing the thread-static variable and enforcing proper font resource disposal.
      • Added support for adding, modifying, and removing page-level actions in PDF documents.
    • JavaScript Library
      • Added image redaction support.
      • Added support for embedding timestamps in PDF documents.
      • Added date-field action support to text box fields.
      • Enhanced the JavaScript PDF library with a new API to create fonts from embedded fonts in various sizes and styles.
      • Enhanced the JavaScript PDF library with new PDF pen properties for customizing color, join, and style.
      • Enhanced image extraction to include ICC color profile support.
Syncfusion Essential Studio Document SDK 2026 Volume 1 (33.1.44)Version majeure16 mars 2026
Fonctionnalités
  • New Control
    • Smart Data Extractor (preview) - Introducing a high-performance, deterministic C# library that extracts complete document structures from PDFs and images. Designed for .NET workflows, it analyzes visual layout lines, boxes, labels, and alignment to locate and extract elements such as table structure, text elements, images, headers, footers, and form fields with per-field confidence scores for immediate review, export, or integration. Key features:
      • Document structure extraction: Identify text elements, images, headers, footers, and tables (including regions, header rows, columns, cell boundaries, and merged cells).
      • File format support: Works with PDF documents and common image formats such as JPEG and PNG.
      • Table extraction: Specialized capability to extract tabular data.
      • Form recognition: Detects and processes structured form data.
      • Page-level control: Extract data from specific pages or defined page ranges.
      • Confidence threshold: Results are filtered based on a configurable confidence score (0.0–1.0).
  • Smart Table Extractor (preview)
    • A focused, high-accuracy C# library for detecting and extracting tabular data from scanned images and PDFs. It detects table regions, header rows, columns, and cell spans (merged cells) and provides per-cell confidence scores and structured exports ready for downstream processing. Key features:
      • Table structure extraction: Identifies table regions, header rows, columns, row and column spans, and cell boundaries.
      • File format support: Compatible with PDF documents and common image formats such as JPEG and PNG.
      • Border type handling: Extract both bordered and border-less tables.
      • Page-level control: Extract tables from specific pages or defined page ranges.
      • Confidence threshold: Filter results based on a configurable confidence score (0.0–1.0).
      • Output options: Export results as clean, structured JSON files or as a digitally reconstructed PDF, depending on your workflow needs.
  • Smart Form Recognizer (preview)
    • Introducing the Smart Form Recognizer, a deterministic C# library for .NET that reliably detects form data in PDFs and scanned images. By analyzing visual layout cues, lines, boxes and circles, it locates form regions and extracts common controls (text fields, checkboxes, radio buttons, signatures), producing clean JSON with per-field confidence scores. Where form fields are detected, the library can also produce a fillable PDF with corresponding form fields added for immediate use. Key features:
      • Form layout detection: Locates form regions using graphical heuristics (lines, boxes, circles) for consistent field discovery.
      • Fillable PDF: Create a PDF with detected form fields added so documents are immediately usable in form workflows.
      • Page-level control: Process specific pages or page ranges for targeted extraction.
      • Multi-format support: Works with PDF, JPEG, PNG and other common image formats.
      • Confidence scoring: Per-field confidence scores with configurable thresholds to control output quality and drive review logic.
      • Ready for .NET integration: Deterministic, on-premises library that outputs JSON and integrates into existing .NET pipelines and review UIs.
      • Output options: Export results as clean, structured JSON files or as a digitally reconstructed PDF with fillable forms, depending on your workflow needs.
  • Common
    • Unified Font Manager - A new FontManager class has been introduced to provide a unified and optimized font-caching system shared across all document-conversion libraries, including Word-to-PDF, Excel-to-PDF, PowerPoint-to-PDF, and PDF-processing workflows. This centralized font management significantly optimizes the performance and memory usage in multi-threaded conversions by preventing redundant font loading.
      • Shared font caching: Stores the fonts in a unified cache to avoid repeated loading.
      • Memory reduction: Eliminates duplicate font objects, reducing memory usage during large or parallel document conversions.
      • Performance optimization: Allows multiple threads to reuse the same font instances safely, improving processing speed.
      • Automatic cleanup: Disposes of unused fonts after a configurable delay (FontManager.Delay) to keep long-running applications working efficiently at all times.
      • Manual cache reset: Provides FontManager.ClearFontCache() to immediately clear all cached fonts whenever you need (while stopping the servers).
  • .NET Excel Library
    • Chart-to-image conversion - The Syncfusion Excel Library now supports bar of pie charts in chart-to-image conversion. This enhancement ensures that these charts are accurately preserved during Excel-to-PDF and Excel-to-image conversions, maintaining visual fidelity and data clarity.
    • Formulas - The Syncfusion Excel Library now supports the following Excel functions. These formulas will be properly read and written when creating or modifying Excel documents:
      • DROP.
      • EXPAND.
      • HSTACK.
      • VSTACK.
      • RANDARRAY.
      • NORM_S_INV.
      • SEQUENCE.
      • TAKE.
      • WRAPCOLS.
      • WRAPROWS.
      • ISOMITTED.
      • MAKEARRAY.
      • REDUCE.
      • SCAN.
    • Performance improvement - The Syncfusion Excel Library now performs Excel-to-PDF conversion faster. Processing speed has also been improved across all data types, making operations on large datasets more efficient.
  • .NET PDF Library
    • PDF page actions - Added suuport for adding, modify, and remove page-level actions that trigger when a page is opened or closed. These actions enable behaviors such as navigating within the document, opening web links, or running JavaScript to enhance interactivity and dynamic page responses.
  • .NET Word Library
    • Ink objects - You can now create, edit, and convert ink objects directly within .docx documents. This upgrade ensures that freehand drawings, annotations, and stylus-based inputs are accurately preserved during PDF and image conversions. With improved visual fidelity for ink content, this feature is especially valuable for educational, design, and collaborative documents that rely heavily on handwritten or sketch-based elements.
    • Localized date and time fields - Date and time fields in Word documents are now rendered in the correct regional format during PDF and image conversions. Formatting is automatically based on the language specified for each individual field, ensuring culturally accurate and audience appropriate presentation in multilingual documents.
  • Visual Studio Code Extension
    • Syncfusion Document SDK Extension - Visual Studio Code - Syncfusion's Document SDK Extension for Visual Studio Code helps developers quickly build Blazor apps with powerful components for handling PDF, Excel, Word, and PowerPoint files, no Microsoft Office or Adobe software required. It offers ready-to-use project templates and handy Blazor code snippets, so beginners can start fast with pre-configured document processing features.
  • JavaScript PDF Library
    • Image redaction support - Image redaction capability has been introduced in the JavaScript PDF Library. This enhancement enables the removal of sensitive or confidential content from images embedded within PDF documents. Redacted regions are permanently cleared from the image data, supporting secure document processing and compliance-focused workflows.
    • Text box field actions support - Support for text box field actions has been added to the JavaScript PDF Library. This enhancement introduces event-driven behavior for PDF text fields, enabling processing during user interaction. The supported actions include KeyPressed, Format, and Validate, allowing form fields to react to keystrokes, apply formatting rules, and enforce validation logic as part of interactive PDF workflows.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.9)10 mars 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue that caused a KeyNotFoundException when flattening PDF form fields.
      • Fixed an issue where PDF documents became corrupted after calling DrawPdfTemplate.
      • Fixed an issue where text was not properly redacted in certain PDF files.
      • Resolved the issue where the flattened annotation was placed incorrectly in the PDF.
      • Resolved an issue where the XMP ConformanceLevel displayed underscores instead of the expected space-separated label.
      • Resolved an issue where annotation bounds were incorrect during document flattening.
    • JavaScript Library
      • Resolved an issue where the stamp annotation appearance was not correctly retained when the PDF was saved multiple times.
      • Fixed an issue where newly created stamp annotations based on existing data returned incorrect bounds.
  • Word Library
    • .NET Word Library
      • The ArgumentException will no longer thrown when saving a DOCX document that contains a comment in a text box.
      • Table cell width is now preserved correctly when converting a DOCX document to PDF.
      • Multi-level list numbering with Unicode level text is now preserved correctly during RTF-to-DOCX conversion.
      • Hindi text with Zero Width Joiner character will now be preserved properly while converting Word to PDF.
      • Pagination issue no longer occurs due to right indented paragraph and floating table while converting Word to PDF.
      • Group shape with Keep with Next tag will now be preserved properly while converting Word to PDF.
  • Excel Library
    • .NET Excel Library
      • Hyperlink range is now preserved correctly when inserting or deleting columns in Excel documents.
      • Formulas are now preserved correctly when a specific range reference is shifted relative to the overall range.
      • Value axis tick marks now render inside when configured as inside for all charts.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.8)3 mars 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where the PDF failed to load after the web page was refreshed.
      • Fixed excessive memory usage in DrawString when rendering RTL text.
      • Fixed an issue where saving a PDF took excessive time when IncrementalUpdate was set to false.
    • JavaScript Library
      • Fixed an issue where free text annotations overlapped their annotation borders.
  • Word Library
    • .NET Word Library
      • Hanging issue will no longer occur for nested table with longer word while converting a Word document to PDF.
      • References field value is now updated properly after calling UpdateDocumentFields API.
      • The ArgumentOutOfRangeException will no longer be thrown while calling AppendHTML API with self closing head tag.
      • Table within textbox is now preserved properly while converting a RTF document to PDF.
      • Text in the multi-column is now positioned properly while converting Word document to PDF.
      • Extra line will no longer occur due to bookmark with horizontal line while converting Word document to PDF.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.7)24 févr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where TextLine width was not updated correctly during text extraction.
      • Resolved missing characters when converting a specific PDF to PDF/A.
      • Resolved an issue where spacing was not preserved during PDF text extraction.
      • Resolved an issue that caused metadata to become null after saving the PDF document.
      • Fixed an issue where a visual artifact appeared while rendering a PdfLoadedRadioButtonListField with a selected value.
      • Resolved an issue where annotation colors were not correctly retrieved in PdfLoadedAnnotation.
      • Fixed an issue where text rendered incorrectly after converting documents to PDF/A.
      • Resolved a StackOverflowException in PdfDocumentBase.Merge with OptimizeResources.
    • JavaScript Library
      • Fixed an issue where newly created stamp annotations using existing data were retrieving incorrect bounds.
      • Fixed an issue where an invalid password exception was thrown when decrypting a password-protected document.
  • Word Library
    • .NET Word Library
      • Font from table styles is now imported properly after merging documents using ImportContent API.
      • Bookmark will no longer be removed while executing Mail merge using Execute API.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.5)17 févr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue causing improper redaction when the stream contained hex-encoded text.
      • Resolved a Target of Invocation exception thrown while running OCR on .NET 8.0 (Windows).
      • Resolved a NullReferenceException thrown while converting PDFs to PDF/A conformance.
      • Fixed an issue causing preservation failures during PDF to PDF/A conversion.
  • Word Library
    • .NET Word Library
      • The NullReferenceException will no longer be thrown when comparing a DOCX document which contains table.
      • Merge field value is now preserved properly when it is in vertically merged cell after executing group Mail merge.
      • Pagination issue will no longer occur due to Page break before section continues break while converting Word to PDF.
      • Pagination issue will no longer occur due to improper Footer image position while converting a Word document to PDF.
      • Text is now preserved properly when list paragraphs are wrapped within floating items while converting Word to PDF.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.4)11 févr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue that caused the application to hang during grid rendering in PDF.
      • Resolved an issue where the original content stream was retained but remained unused after redaction.
      • Fixed an issue that caused a conformance failure when adding tagged fields required for PDF/A‑2a compliance.
      • Fixed an issue where text was rendered incorrectly after converting documents to PDF/A format.
      • Fixed a performance issue and resolved an exception that occurred when drawing a template from the PDF document.
  • Word Library
    • .NET Word Library
      • The NullReferenceException is no longer thrown while opening DOCX document with Date and Time field.
      • Picture Content control is now preserved properly with required size while converting a Word document to PDF.
      • Text is now preserved properly when list paragraphs are wrapped within floating items while converting Word to PDF.
      • Table cell background is now preserved properly while converting HTML to PDF.
  • Excel Library
    • .NET Excel Library
      • Row height is now returned correctly when the custom height attribute is not present.
      • Write only streams are now handled correctly when saving a workbook.
      • Auto filter with Top10 is now preserved properly when rows are hidden.
      • Cropped WMF images are now rendered correctly during Excel to PDF conversion in .NET Core.
Syncfusion Essential Studio Document SDK 2025 Volume 4 SP1 (32.2.3)5 févr. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue in which symbols were not correctly updated while extracting text.
      • Fixed an issue where the application was hanging during text extraction.
      • Fixed an issue where the font style was not applied correctly for complex script text.
      • Fixed an issue where PDF text alignment did not work for Unicode fonts.
  • Word Library
    • .NET Word Library
      • The ArgumentOutOfRangeException will no longer be thrown when converting HTML documents with empty nested tables to PDF.
  • Excel Library
    • .NET Excel Library
      • The performance delay is no longer experienced when a large Excel range containing plain text is sorted.
Syncfusion Essential Studio Document SDK 2025 Volume 4 (32.1.25)27 janv. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Fixed an issue where a StackOverflowException occurred when merging a specific document.
      • Fixed an issue where an ArgumentException occurred when merging a specific document.
      • Fixed an issue where structure element bounds were not retrieved correctly when the CultureInfo was changed.
      • Fixed an issue where the font was not optimized correctly during PDF compression.
  • Word Library
    • .NET Word Library
      • Exception is no longer thrown while opening an encrypted DOCX document.
      • The InvalidOperationException will no longer be thrown while replacing the bookmark content with fields.
      • Table cell background is now preserved properly during HTML to PDF conversion.
      • The NullReferenceException will no longer be thrown for MathML containing symbol when calling UpdateDocumentField API.
      • Tab width is now updated properly for right aligned lists while converting DOCX to PDF.
  • Excel Library
    • .NET Excel Library
      • Merged cell text is now rendered correctly when converting Excel documents to PDF.
      • Application no longer hangs when opening Excel files with person tags using the x18tc namespace.
      • AutoFilter output is now preserved correctly when applying a Top 10 filter on columns containing formula-based values.
  • PowerPoint Library
    • .NET PowerPoint Library
      • The IndexOutOfRangeException will no longer be thrown while opening the PowerPoint presentation with empty bullet images.
Syncfusion Essential Studio Document SDK 2025 Volume 4 (32.1.24)20 janv. 2026
Corrections
  • Word Library
    • .NET Word Library
      • Cross Ref field is now updated properly after calling UpdateDocumentFields API.
      • Gradient fill color for shape is now preserved properly while converting a DOCX document to PDF.
      • OlePicture is now preserved properly after comparing DOCX documents.
      • The ArgumentOutOfRangeException will no longer be thrown when field is present inside a Math element while converting Word document to PDF.
Syncfusion Essential Studio Document SDK 2025 Volume 4 (32.1.23)13 janv. 2026
Corrections
  • Word Library
    • .NET Word Library
      • Auto-hyphenation has been improved while converting a Word document to PDF.
      • Table row header is now preserved properly for adjacent table while converting DOCX to PDF.
      • Character formatting is now applied properly for Merge fields after using the MergeField event for formatting.
      • Table cell width is now preserved properly for autofit table while converting a Word document to PDF.
  • Excel Library
    • .NET Excel Library
      • Conditional formatting is now rendered in Excel to PDF when style information is missing in Excel document.
Syncfusion Essential Studio Document SDK 2025 Volume 4 (32.1.22)6 janv. 2026
Corrections
  • PDF Library
    • .NET PDF Library
      • Resolved an issue where text search did not work correctly in PDFs containing barcode text.
      • Resolved preservation issues that occurred while inserting PDF pages.
  • Word Library
    • .NET Word Library
      • The OutOfMemoryException will no longer be thrown due to improper image cropping while converting Word document to PDF.
  • PowerPoint Library
    • .NET PowerPoint Library
      • Text with picture fill is now preserved properly while resaving a PPTX document.