Released: Dec 18, 2025

25.2 での更新項目

機能

• AI-powered Document Processing APIs - DevExpress Office File API products (Word and PDF Processing Document API, Presentation API library) now support NLP-powered text transform extensions. AI-powered extensions allow you to enhance the way users interact with and manage text-based content. These DevExpress extensions leverage advanced natural language processing (NLP) technologies and enable you to integrate advanced language models directly into document processing scenarios.
• Translate and Proofread Word Documents, PDF Files, and Presentations - Office File API v25.2 ships with the AI-powered translation and proofreading capabilities.
• Ask Questions about the Word Document and PDF Files - The new AskAI extension methods allow you to ask contextual questions about a document using custom prompts.
• Summarize Word Documents, PDF Files, and Presentations - Use Summarize extension methods to generate a short summary of a document or a presentation.
• PDF Document API
  • Object Stream Compression and Optimization - DevExpress PDF Document API now supports automatic object stream compression (to reduce file size when saving documents). Object streams (PDF 1.5+) pack multiple PDF objects into a single compressed stream without affecting document content or quality.
  • Object Stream Compression for PDF Export in Other DevExpress Products - PDF export operations in DevExpress Reports, Rich Text Editor, and Spreadsheet Controls also supports object stream compression.
  • Enhanced Image Compression Support - Grayscale & Bitonal - DevExpress PDF Document API includes specialized compression algorithms for grayscale and bitonal (black-and-white) images. You can also convert color images to grayscale to reduce file size when color accuracy is not essential.
  • Remove Optional Content During Optimization - DevExpress PDF Document API v25.2 allows you to optimize file size by removing optional content
  • PDF/A Processing Enhancements - Enhanced PDF/A file processing capabilities (import, edit, and save) when using the DevExpress PDF Document API. This capability ensures that files remain PDF/A-compliant after modifications. Also added APIs to determine the current PDF/A and PDF/UA compatibility state for a document and reset this state.
• Word Processing Document API
  • Mail Merge Enhancements - Merge Data with Detail Regions - The mail merge engine used within the DevExpress Word Processing Document API supports nested regions. You can merge data with any number of hierarchical levels (master-detail-subdetail and beyond) within a single template. Existing MailMerge methods work for both single-level and multi-level documents, no additional settings/toggles required.
  • PDF/UA Export - Form Field Tagging - DevExpress Word Processing Document API v25.2 automatically adds accessible tags to PDF form fields when users export Word documents with Content Controls to accessible PDF formats.
• PowerPoint Presentation API
  • PowerPoint Tables - Added support for PowerPoint tables. You can now upload and save PowerPoint presentations with tables and manage them programmatically (customize, read, delete, or create new tables from scratch).
  • New Formats  -The DevExpress PowerPoint Presentation API allows you to upload and save presentations in the following formats (in addition to PPTX):
    • PPTM (PowerPoint Macro-Enabled Presentation).
    • POTX (PowerPoint Template).
    • POTM (PowerPoint Macro-Enabled Template).
  • Text Manipulation APIs - Search, Replace, Remove, Highlight - APIs allow you to search for text and replace/format matches across an entire presentation, individual slides, or specific shapes.
  • Themes - New theme APIs allow you to read, apply, and modify PowerPoint themes programmatically.
  • Rendering Enhancements - Refined the internal document layout engine to deliver more accurate rendering of PowerPoint presentation content. This update improves how text, shapes, and layout elements are measured and drawn when you print or export presentations to PDF.
• Spreadsheet Document API
  • Extended OLE Object Support - DevExpress Spreadsheet Document API library allows you to import/export linked and embedded OLE Objects in binary Excel formats (XLS and XLSB). You can create, edit, or remove OLE objects in Excel documents and save these document to binary formats without content loss.