Released: Apr 2, 2026

Updates in 2026 Q1 (2026.1.402)

Features

• PdfProcessing
  • Optimized the export of Functions.
  • Improved font handling during document import.
  • Introduced API for Cloning RadFixedPages and for splitting RadFixedDocument into pages.
  • Implement AutoTag Tables from document Primitives.
  • Introduced support for PDF Portfolios.
  • Implemented Exponential Interpolation Function.
• SpreadProcessing
  • Improved SpreadProcessing analysis agent tools — filtering, grouping, and aggregation now handle complex analytical queries with greater accuracy and...

Released: Mar 4, 2026

Updates in 2026 Q1 (2026.1.304)

Features

• PdfProcessing:
  • PdfStreamWriter: Applied encoding filter from StreamCompression setting when exporting XObject.
  • Introduced optimization of the export of objects with the same stream.
• ZipLibrary:
  • Added cleanup of password in AES encryptor when it is no longer necessary.
• Dependencies:
  • Updated the Telerik Licensing minimal required version to 1.7.0.

Fixes

• PDFProcessing:
  • Fixed issue with a NullReferenceException when opening a document with a CFF Type1 font.
  • Fixed issue where...

Released: Feb 11, 2026

Updates in 2026 Q1 (2026.1.210)

Features

• What's New:
  • [PREVIEW] Introduced Document Processing Agentic Tools enabling developers to seamlessly build document processing agentic workflows.
• Dependencies:
  • Updated the Telerik Licensing minimal required version to 1.6.40.
  • Updated Microsoft.Extensions.AI.Abstractions to 10.2.0.
  • Updated Microsoft.SemanticKernel to 1.70.0.
• PdfProcessing:
  • PdfStreamSigner: Introduced TimeStamp server support.
  • Improved PDF digital signing to comply with European Commission validation requirements.

Fixes...

Released: Jan 19, 2026

Updates in 2025 Q4 (2025.4.1319)

Features

• What's New:
  • Updated Telerik Licensing minimal required version to 1.6.36.
• DocumentProcessing:
  • Introduced API for automatic file format detection.
• PdfProcessing:
  • Introduced API used to sign documents using only the end certificate of a certificate chain.
  • Introduced a mechanism for changing the Standard font when exporting a PDF/A Compliance document.
  • Handled import of documents with a negative cross-reference stream offset.
  • Handled the import of documents with invalid offset and no space...

Released: Nov 12, 2025

Updates in 2025 Q4 (2025.4.1104)

Features

• What's New:
  • Telerik Document Processing AI Coding Assistant is extended with support for WordsProcessing, SpreadProcessing, SpreadstreamProcessing and ZIP Library. It now supports all libraries.
  • GenAI-powered Document Insights for SpreadProcessing: Added support for querying and summarizing Workbook content using AI, enabling users to interact with and extract insights from Workbooks.
  • Introduced extended digital signature support for the PdfProcessing library. You can now externally...

Released: Oct 8, 2025

Updates in 2025 Q3 (2025.3.1007)

Features

• What's New:
  • Introduced a Telerik Document Processing AI Coding Assistant for the PDF Processing library, which can be used through an MCP server.

Fixes

• PdfProcessing:
  • TextFormatProvider: Extra character spacing occurred after export.
  • An OutOfMemoryException: Insufficient memory to continue the execution of the program when importing a document larger than 2.1 GB.
  • ListBoxField selection is lost after import-export when the normal appearance contains MarkedContent with an empty properties...

Released: Aug 13, 2025

Updates in 2025 Q3 (2025.3.806)

Features

• What's New:
  • WordsProcessing: Added support for querying and summarizing RadFlowDocument content using AI, enabling users to interact with and extract insights from RadFlowDocuments.
  • PdfProcessing: Enhanced Accessibility and Compliance Support - Introduced comprehensive support for accessible and standards-compliant PDF documents generation, including Tagged PDF for improved document structure and compatibility, as well as compliance with PDF/UA-1, PDF/A-1a, PDF/A-2a, and PDF/A-3a...

Released: Jul 2, 2025

Updates in 2025 Q2 (2025.2.701)

Fixes

• PDFProcessing:
  • Fixed NotSupportedException: BitReader supports only integers with less than 31 bits.
  • Fixed issue where the wrong clipping order when exporting a document with MarkedContent leads to missing content.

Released: May 19, 2025

Updates in 2025 Q2 (2025.2.520)

Features

• Breaking Changes:
  • Trial and commercial users now use the same product package. The trial and commercial product versions merged into a single unified distribution package. The product access now depends on a license key file. This eliminates the need for separate trial downloads.
  • For basic compression/decompression tasks, the Telerik Document Processing Libraries now use System.IO.Compression instead of Telerik.Zip.
• What's New:
  • Document Processing Libraries no longer support .NET...

Released: Feb 12, 2025

Updates in 2025 Q1 (2025.1.205)

Features

• Starting with 2025 Q1, all users of the Telerik and Kendo UI components and tools, will need to apply a valid license key file to both new and existing projects.
• Introduced support for Optical Character Recognition (OCR), allowing the conversion of images of typed, handwritten, or printed text into machine-encoded text from a scanned document.
• PdfProcessing:
  • Introduced support for Optical Character Recognition (OCR), allowing the conversion of images of typed, handwritten, or printed...