PDF4NET (英語版) のリリース

Released: Oct 29, 2020

10.4.x での更新項目


Updated Oct 29, 2020


  • Improved - Fast PDF encryption/decryption with less overhead.
  • Fixed - Bottom border is not displayed when a table cell is split across pages.
  • Fixed - Text is not extracted correctly in some situations.

Released: Sep 29, 2020

10.3.3 での更新項目


  • Fixed an issue where some OTF fonts are not properly embedded in the PDF file.
  • Fixed an issue where table cells are not tagged correctly in some situations.
  • Fixed an issue where position of rotated text is not computed correctly in some situations.

Released: Aug 28, 2020

10.3.2 での更新項目


  • Text drawn using Unicode TrueType fonts created from other Unicode TrueType font cannot be extracted.
  • Some rows are not displayed when the a table is split across pages.
  • The size of extracted text fragments is not correct when the text uses Type3 fonts.

Released: Jul 31, 2020

10.3.1 での更新項目


  • Added VisualBounds property to PdfVisualObject class.
  • Flow table layout is not performed correctly.
  • Flow table layout is not performed correctly when cell span breaks on page boundary and a new cell span follows it.
  • Existing page content becomes garbled when adding new content to the page.
  • String cells reset their alignment when the parent row is split across pages.
  • Existing digitally signed PDF files cannot be saved.
  • Digital signature cannot be validated is some situations.
  • Flow...

Released: Jun 26, 2020

10.3.0 での更新項目


  • Load digital signatures from signed PDF files.
  • Decode existing signatures into basic ASN.1 blocks.
  • Extract the certificate from digital signatures.
  • Save the signed copy of a PDF document.
  • Added support for partially loading of COS stream objects.


  • In partial load mode the indirect reference objects cannot be read.
  • SVG with <use> node is not converted correctly to PDF.
  • Extracted page appears to be cut when inserted into new document.
  • Flow table layout cannot be performed in some...

Released: May 27, 2020

10.2.3 での更新項目


  • SVG is not converted to PDF because viewbox is not parsed correctly.
  • Visual objects cannot be extracted from PDF page, the result contains only a few objects.
  • Text position is not computed correctly when it uses a Type3 font.
  • SVG with masked image is not converted correctly to PDF.
  • Page content cannot be extracted if page rotation is 360.

Released: Apr 30, 2020

10.2.2 での更新項目


  • Opacity for fill/stroke in SVG is not handled correctly in some situations.
  • Hanging parts of characters p,q,g,j,y are cut when filling fields that have height almost identical to font size.
  • In some situations auto-tagging generates an exception on flow table headers.
  • StackOverflowException is thrown when loading a PDF form with invalid circular links in form definition.
  • PdfPageInfo.Width property throws NullReferenceException with some files.
  • Annotation is not flattened in the correct...

Released: Mar 31, 2020

10.2.1 での更新項目


  • Changed behavior - a PdfPage that belongs to a PdfFixedDocument cannot be added to another PdFixedDocument as this can lead to subtle bugs in the generated PDF file.


  • Rotate transform in SVG is not handled correctly in some situations.
  • Some percentage size and positions in SVG are not handled correctly.
  • WIN - PDFImage objects cannot be drawn on the page when they are created from a 32bit RGB bitmap.
  • Text extraction fails with exception when encountering invalid Type 0 fonts.

Released: Feb 27, 2020

10.2.0 での更新項目


  • Added new PDF merging class.
  • Added SourceXResolution and SourceYResolution properties to PdfTiffImage and PdfXLTiffImage classes to give access to resolution information included in TIFF images.


  • Text is not extracted correctly from some PDF files.
  • Documents with pages that have non-standard rotation values cannot be loaded.
  • /UF key is not set when setting the FileName property on a remote goto action.
  • Some palette based TIFF images are not converted correctly to PDF.
  • Some 1bit LZW...

Released: Jan 10, 2020

10.1.0 での更新項目


  • Extract page content with associated logical structure information.
  • Ink annotations now use round line joins and line caps.


  • CCITT encoded TIFF images are not handled correctly in PDFXLTiffImage class.
  • The tree of structure elements is not properly loaded in some situations.
  • Unicode text cannot be set as content of free text annotations.
  • Border color for free text annotations cannot be set to a different color than text color.