Released: May 20, 2025

v5.3.9.0 での更新項目

機能

• 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 flags which can be set using this command COMPDF_TextExtractModes. I.e. you can ignore control codes.
• Improved unicode conversion: ToUnicode CMAP has precedence before Encoding parameter.
• Added new command: COMPDF_PrintAsBitmapImgCount.
  • If a page has has more images than specified, a monochrome bitmap is used to buffer the complete output to avoid memory problem with printer. You can use COMPDF_PrintUseBitmaps to customize the resolution and color depth of the buffer bitmap.

不具合の修正

• Fixed a problem with text printed with negative height.
• Fixed a problem loading PDF files which use empty objects in struct elements.
• Fixed a problem when saving PDF files which use a struct tree with rare parameters.