Released: Mar 9, 2026

Updates in v6

Features

• Added support for strong AES encryption and decryption.

Released: Feb 24, 2026

Updates in v5.6.0.0

Features

• Includes changes to make WPViewPDF more robust when using it with PDF files that contain insecure JPEG and JPEG2000 images.

Released: Jan 2, 2026

Updates in v5.5.2.0

Fixes

• Improved the handling of single line edit fields (AcroForm).

Released: Dec 10, 2025

Updates in v5.5.1.5

Features

• Improved the handling of multi line edit fields (acroform). It improves rendering, editing and wordwrap.

Released: Nov 9, 2025

Updates in v5.5.1.0

Features

• Improved word wrap for text widgets.
• Improved text copy to clipboard.
• Improved bitmap support.

Released: Sep 29, 2025

Updates in v5.5.0.0

Features

• Strengthened resilience to malformed PDF documents.
• A message is now triggered when a file with unsupported encryption is being loaded.
• Made various improvements.

Fixes

• Fixed issue where a font was not loaded from a PDF file.

Released: Sep 9, 2025

Updates in v5.4.0.2

Features

• Improved the display of monochrome images with transparent areas and rendering of justified text.

Released: Aug 2, 2025

Updates in v5.4.0.1

Features

• When in form edit mode:
  • Command COMPDF_Ann_XMLGetFromAcrofield will now read data from the field which is currently edited, not the selected AcroField, when you pass IntPar=1.

Fixes

• When in form edit mode:
  • Fixed limit when drawing patterns with too many iterations.
  • Fixed method when saving AcroForm fields. Sometimes internal references became invalid.

Released: Jul 3, 2025

Updates in v5.3.9.2

Fixes

• Fixed issue regarding detecting if the value BitsPerComponent was not used in a mask image and defaulted to 1.
• Fixed issue to avoid problems with patterns that use a rotated matrix.
• Fixed issue where some fonts became invisible.
• Fixed issue where a BitmapBrush is not used for images which are painted as pattern as one single image.

Released: May 20, 2025

Updates in v5.3.9.0

Features

• Monochrome bitmaps are now rendered with less memory overhead. This can help to improve printing performance.
• Added new global parameter: "PrintType3AsText=1".
  • If you use this, type3 text will be printed using the characters extracted from the ToUnicode definition of the Type3 Font. This can avoid problems with some forms which print each character as bitmap. Please note, that in case a PDF uses incorrect ToUnicode map files, the text will be printed incorrectly.
• Added new ExtractText...