Released: Jun 24, 2026

Updates in 2026 Q2 (2026.2.624)

Features

• What's New:
  • The Agent Tools can convert to and from Markdown documents.
• PdfProcessing:
  • Introduced support for Encryption Algorithm 7.
  • Introduced support for Legacy X.509 RSA Signature.
  • Introduced support for XRechnung compliance.
  • OS-Based Automatic Font Resolution Fallback.
  • Improved font handling during document export.
• SpreadStreamProcessing:
  • SpreadStreamProcessing: Added support for AutoFilter.
• WordsProcessing:
  • PdfFormatProvider: Export accessible PDFs.

Fixes

• PdfProcessing:
  • .NET...

Released: May 19, 2026

Updates in 2026 Q2 (2026.2.519)

Fixes

• PdfProcessing:
  • Fixed a CryptographicException because MD5 not available on Blazor WASM.
  • Fixed issue when exporting Courier New subset results in corrupted document.
  • NetStandard: Fixed missing content due to empty glyph outlines in embedded TrueType font subsets.
• SpreadProcessing:
  • PdfFormatProvider: Fixed NotSupportedException: 'No imaging component suitable to complete this operation was found.'.
  • PdfFormatProvider: Fixed NullReferenceException when exporting PatternFill with PatternType...

Released: May 14, 2026

Updates in 2026 Q2 (2026.2.514)

Features

• What's New:
  • The output stream is now automatically cleared before exporting, preventing corrupted documents when reusing a stream that already contains data.
  • Document Processing NuGet packages are now published on NuGet.org for easier discovery and consumption.
• Breaking Changes:
  • Removed all obsoleted APIs.
• PdfProcessing:
  • Handled import of documents with missing/invalid rectangle (re) operands.
  • Handled invalid ASCII85Decode filter scenario - PDF streams where the end-of-data marker...

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...