Release History

Progress® Telerik® Document Processing 2026.1.402

April 2, 2026

What's New

Dependencies

• Telerik Licensing minimal required version is updated to 1.8.2.
• Document Processing Agent Tools for building agentic workflows are now generally available.
• Added tools for extracting text, describing document structure, searching text, retrieving bookmarks, flattening form fields, and removing pages from PDF documents.
• SpreadProcessing analysis agent tools significantly improved — filtering, grouping, and aggregation now handle complex analytical queries with greater accuracy and reliability.

PdfProcessing

NEW

• Optimized the export of Functions.
• Improved font handling during document import.
• System.IO.Hashing is added as a dependency for .NET 8 or greater.
• 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.

FIXED

• The import performance is reduced when having XObject instances with many Shading elements.
• PdfStreamWriter: Merging PDF documents causes blank pages.
• An InvalidCastException when importing a document.
• A NullReferenceException is thrown when importing a document with EmbeddedFile without Subtype.

SpreadProcessing

NEW

• XlsFormatProvider: Add support for hidden rows.
• Add support for Superscript/Subscript formatting option.
• Introduced support for notes in XLS format.
• Add support for Strikethrough formatting option.
• Introduced support for images when importing and exporting XLS documents.

FIXED

• SpreadProcessing: XLSX image lock aspect ratio imports incorrectly when importing a document with PictureLockingElement which noChangeAspect attribute is boolean
• XlsFormatProvider: InvalidOperationException is thrown when importing a document with an unsupported BIFF record.
• Importing file with comments part with other name than comments.xml throws and exception.

WordsProcessing

FIXED

• PdfFormatProvider: Justified text alignment is not respected for specific text content.