Release Highlights

Aspose.PDF for .NET 25.2 adds full support for PDF/X-4 conversion, fine-grained digital signature management using SignatureName, and advanced control over text box form fields.

✫️ New Feature

• PDF/X-4 Compliance: Convert PDFs to PDF/X-4 standard with external ICC profiles and output intent for accurate print-ready output.
• Signature Delegate Control: Avoid dual invocation of CustomSignHash using AvoidEstimatingSignatureLength.
• Advanced Signature Name Handling: Use SignatureName type to handle and verify uniquely named digital signatures.
• Multi-Widget TextBoxField: Add TextBoxField with multiple widget annotations and customized appearances.

🔧 Enhancement

• Image Optimization: Improved compression for embedded images without quality loss.
• Security: SHA-3 based signature verification enhancements.
• PDF Repair: Expanded repair support for Annotation.Rect and resource dictionaries.
• Vulnerability Fix: Updated System.Text.Json dependency to mitigate vulnerabilities.

🛠 Fix

• Fixed duplicate link annotations and missing content during PS to PDF conversion.
• Resolved NullReferenceException, IndexOutOfRangeException, and memory leaks across signature and text extraction workflows.
• Corrected visual formatting for TextStamps, Bookmarks, and PDF/A conversions.
• Improved handling of rotated text, SVG rendering, and Thai language in HTML export.

👉 You can view the full list of updates by visiting Aspose.PDF for .NET 25.2 Release Notes

pdf x4 conversion | signature verification api | textbox multiple widgets | custom signhash handler | pdf repair features