Released: Jul 2, 2025

25.1 での更新項目

機能

PDF Document API

• PDF Document Compression - Preserve Compressed Object Streams when Saving - In previous versions, the PDF processing engine supported compressed object streams only when reading documents. When saving, the DevExpress PDF Document API library wrote PDF object streams in an uncompressed form. To reduce file size when saving PDF documents using the DevExpress PDF Document API library, v25.1 ships with a new compression engine designed to preserve the original/compressed state of PDF object streams. The compression mechanism automatically applies to various document structures (text, PDF forms, fonts, and more) and allows you to modify/save PDF files more efficiently.
• Image Compression API - v25.1 includes APIs designed to compress document image size.
• PDF Redaction API - v25.1 includes new APIs to create and manage redaction annotations. With this capability, you can hide/remove sensitive or private content from your documents and add a colored text overlay across the redacted area.

Spreadsheet Document API

• OLE Objects - The DevExpress Spreadsheet Document API Library now supports OLE objects. OLE (Object Linking and Embedding) allows you to link external files and embed data (spreadsheets, PDFs, mail messages, presentations, etc.) into your Excel documents.

Word Processing Document API

• Right-to-Left (RTL) Engine Enhancements - Enhanced the Right-to-Left text rendering engine (improved text order in paragraphs, headers and footers, numbering lists, tables and shapes with bi-directional text including mixed Right-to-Left and Left-to-Right text blocks).
• CJK (Chinese, Japanese and Korean) Text Wrapping - v25.1 adds CJK text wrapping and line-break rule support. In previous versions, DevExpress Word-processing libraries applied Latin text wrapping rules (which rely on space characters and punctuation marks) to Chinese, Japanese, and Korean text.
• PDF Export - Convert Word Content Controls to PDF AcroForm Fields - Enhanced the Word Document to PDF export engine with built-in conversion of Word content controls to PDF AcroForm fields.
• Compare Word Documents - v25.1 includes new APIs to programmatically compare two Word documents:
  • Identify changes between two documents and generate document output with revisions.
  • Compare both document text and formatting (including the case-sensitivity).
  • Compare content in document headers, footers and textboxes.
  • Setup author/date of output revisions.
  • Compare content at the word or character level.
  • Return the document with revisions as a new Document instance for further processing (or automatically replace an input document with revised content).