Releases notes for Amyuni PDF Converter and Amyuni PDF Creator products
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- Even numbered releases are development builds which are released to Beta testers and should not be found in production environments
- Odd numbered releases are certified releases which are available to general customers
- The release notes that are found in this file cover the odd-numbered releases only and not the intermediary even-numbered builds
- Some modifications occur in shared modules and affect both products, in this case the release note is placed below the product that is most affected by the modification

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PDF Converter version 6.5.4.3 - May, 2026
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- Updated ZLib to 1.3.2 to address CVE-2026-27171 reported in zlib versions before 1.3.2

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PDF Creator version 6.5.4.3 - May, 2026
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- Updated ZLib to 1.3.2 to address CVE-2026-27171 reported in zlib versions before 1.3.2
- Fix for failure to load a PDF file that containing loading actions for fields that reference previously loaded actions causing and infinite loop and running out of memory
- Fix for loading of indirect objects that are expected to contain an integer value but instead there's a comment before the number
- Fix for crashes loading various PDF files due to invalid elements like image masks, missing structure elements or unsupported stream compression in metadata.
- Fix for wrong reporting of ParentFullName of form fields that are in a tree hierarchy
- Fix for regression after a recent update of FreeType from 2.9 to 2.13 which was resulting in missing text when rendering


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PDF Converter version 6.5.4.1 - March, 2026
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- Fix for slow printing of a large JPG the image is very large when source to destination color translation object has a flag that says the color translation is trivial, we should not call the engine function that does the translation because it can very slow. We do the trivial color translation directly instead.


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PDF Converter version 6.5.4.1 - March, 2026
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- Fix for crash loading a PDF with an image that has an invalid /Mask
- Fix for loading a PDF that has lots of references to missing objects for StructElements
- Fix for loading a PDF that has a metadata stream that is encoded in with a /JBIG2Decode filter. It is not an image stream and does not provide /Height and /Width entries. Fixed by detecting this situation and skipping the decoding of the stream
- Fix for wrong reporting of ParentFullName of form fields that are in a tree hierarchy

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PDF Converter version 6.5.3.9 - November, 2025
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- Updated 3rd party library ZLib to version 1.3.1

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PDF Creator version 6.5.3.7 - July, 2025
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- Minor fixes and improvements crashes or hangs with certain PDF files with corrupt fonts

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PDF Converter version 6.5.3.7 - July, 2025
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- Fix for zero byte generated PDF with Monochromatic TIFF Images (or incorrectly masked out black pixels)
- Fix for SendMail to allow specifying file names that contain a semicolon
- Fix PDF layer structure missing when providing an OCG string containing items that are not actually references in the document

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PDF Creator version 6.5.3.7 - July, 2025
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- Fix for SendMail to allow specifying file names that contain a semicolon
- Fix for crash in when opening an encrypted PDF that has non encrypted metadata
- Fix export to DOCX text clipping in table of content

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PDF Converter version 6.5.3.5 - April, 2025
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- Fix for install.exe of the PDF Converter which was causing compatibility issues with older dlls installed on the same machine and added a new flag /patchCDINTFOnly which can be used to only update in System32 and SysWow64 the CDIntf with the latest version ones
- Updated the 3rd party library Jasper to version 4.2.5
- Updated the 3rd party library FreeType to version 2.13.3


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PDF Creator version 6.5.3.5 - April, 2025
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- Fix for text gets cut off because of error in transparency rendering implementation when PDF has font dictionaries as well as actual font programs that have bad boundbox/ascent/descent values that do not cover the glyphs rendered from those fonts correctly
- Fix for merge issue when merging a document to current document using an intance of another document as opposed to using a file name. The save operation does a duplicate resource optmization which was incorreclty detecting two different Form XObject resources as identical.
- Added PDF Creator document attribute that can be used to set a maximum limit on the number of clipping operations, "MaxClippingPathPoints". This is a work around for some PDF file that the PDF Creator takes a very long time to render.
- Updated the 3rd party library Jasper to version 4.2.5
- Updated the 3rd party library FreeType to version 2.13.3

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PDF Converter version 6.5.3.3 - October, 2024
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- Fix for XMP metadata, some attributes like 'about' were missing the namespace 'rdf:' prefix
- Fix for memory leak that was causing the process to run out of memory when allocating memory for the printer DEVMODE after around 63000+ allocations that were not freed
- Fix for leaked open registry handles
- Fix for a rendering where in some case optimizing path operations was incorrect
- Fix for a crash when parsing PostScript that we do not fully support
- Fix for switched paper dimensions for A0 and A1 in the paper settings UI
- Updated PDF Converter and CDIntf from using Leptonica 1.76.0 to 1.84.1 to address a security vulnerability


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PDF Creator version 6.5.3.3 - October, 2024
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- Fix for crash running out of memory with 32 bit PDF Creator when rendering a PDF page that has blending
- Fix for XMP metadata, some attributes like 'about' were missing the namespace 'rdf:' prefix
- Fix for a crash when trying to render PDF files with 16-bit gray-scale images
- Updated PDF Creator and CDIntf from using Leptonica 1.76.0 to 1.84.1 to address a security vulnerability

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PDF Converter version 6.5.3.1 - June, 2024
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- Removed Amyuni PDF Creator under the destination tab
- Disable running post network installation VBS script from acfpdf.txt

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PDF Creator version 6.5.3.1 - June, 2024
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- Fix for crash happening when rendering an image encoded with a 16 bit gray colorspace
- Fix for infinte loop and non stop refresh when loading a particular PDF file that has Type3 fonts


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PDF Converter version 6.5.2.9 - March, 2024
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- Added to the old UI of the PDF Converter some elements that were present in the new UI and missing in the old
- Fix for select output file dialog so that it keeps the focus on the file name edit box when the dialog pops up
- Fix for PDF Converter printer so that it reports that it supports color printing with DeviceCapabilities()

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PDF Creator version 6.5.2.9 - March, 2024
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- Fix for a regression that started with 6.5.2.7 that was causing an infinite loop when opening a document
- Support and incorrect incorrectly specified “ViewerPreferences” PDF catalog object dictionary using [ … ] instead of << … >>
- Fix for issue when scrolling a document in continuous page viewing mode, the signature near the bottom of the second page seems to be disappearing.

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PDF Converter version 6.5.2.7 - October 30, 2023
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- Small enhancement to CDIntf BatchConvert() that will have it check for "print" verb support for a the file type and if there isn't any, for .txt files it will use Notepad.exe to print instead of ShellExecuteEx()
- Changing strings from Amyuni to Apryse
- Changed default margin to 0. This is the first build of Apryse PDF Converter now. We decided that having a default margin > 0 in the driver causes printing to come out slightly different than printing to PDF or XPS printers that have their default margin at 0. We will leave the setting of the margins to use to the printing application

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PDF Creator version 6.5.2.7 - October 30, 2023
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- Changing strings from Amyuni to Apryse

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PDF Converter version 6.5.2.5 - June 28, 2023
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- Install.exe fix for bug with use of command line parameter
- Fixes for cancel/abort document event firing
- Fix for rendering with preview frame when printing


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PDF Creator version 6.5.2.5 - June 28, 2023
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- Fix for using correct font from a PDF file that has the font name with characters that do not work for TrueType fonts

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PDF Converter version 6.5.2.3 - June 28, 2023
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PDF Creator version 6.5.2.3 - June 28, 2023
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- Fix exporting to HTML when the document has rectangles/frames, the output html was getting very long pages sizes
- Fix for saving text to design info then loading it, the text gets very small font size
- Fix for bug loading the appearance streams with a particular case of a PDF file that has a form field button widget's appearance in an unusual form
- Fix for crash when we have a document that has security flags that do not allow modification but allow annotations only, when adding an object programmatically, it was failing
- Fix for duplicate page for pages that have form fields in a tree structure where the resulting parent form field names got changed incorrectly
- Fix for regression loading a font from a PDF file when using design info
- Fix for regression where opening a PDF file that has many text form fields, adding any object to page 1, resaving to new file, the new file was ballooning in size (e.g.: from ~980kb to 24mb)
- Fix for infinite loop resulting from incorrect conversion from UNICODE to ANSI when running the sample demo for layers in the PDF Creator
- Fix for a type that resulted in putting info under wrong column in the document settings dialog tab for the list of fonts in the document
- Fix for crash when rendering Type3 font glyphs


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PDF Converter version 6.5.2.1 - March 23, 2023
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- Fix for issue 3866: Multiple pages in one page broken with trial version PDFConverter
- Fix for bug with BatchConvert() when the syntax "*.*" is used in the file name
- Changed the default option to use page content optmization to off
- Fix for issue with two internal escape codes used by the PDF Converter were in the wrong range and conflicted with GDI escape code

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PDF Creator version 6.5.2.1 - March 23, 2023
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- Fix for issue 3868: Exporting document with transparent image causes resulting JPEG to become solid image
- New feature that allows converting a document into a multiple pages per sheet document(N-Up) without having to print to the PDF Converter or another printer that does N-Up processing
- Small fixes for the OCR feature; e.g.: very small text was not being picked up
- Fix for a case of loading a PDF file that has an Info in the trailer as a direct object (which is wrong according to the PDF specification)
- Fix for regression that started to show when doing things like opening an XPS file and saving to PDF we were getting some pages (usually not the first one) that have text showing as the missing character glyph (the square)
- Fix for Issue 3879: TIFF with header 0x4d4d (tif big-endian) does not open in PDF Creator

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PDF Converter version 6.5.1.7 - October 21, 2022
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- Improved content optimization by removing duplicate content across pages
- Fix for issues with slow rendering of specific WMF files to PDF Converter
- Fix for issue3863: Printing PDF document with rotated pages printed differently in v65 than in v6 CDIntf
 
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PDF Creator version 6.5.1.7 - October 21, 2022
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- Fix for issue 3866: Field object incorrectly formatted using JavaScript
- Fix for issue 3865: Resaving PDF to PDF/A causes font issues
- Fix for issue 3864: Scaling a PDF document failing in PDF Creator
- Fix for issue 3862: Document contains an image that does not print correctly when using the PDF Creator
- Fix for issue 3861: Appending documents with incorrect ToUnicode objects generates a bad BBOX error in resulting document

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PDF Converter version 6.5.1.5 - August 9, 2022
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- Added the flag IO_DISABLE_GENERATE_IMAGE_CLIPPINGS. This flag can be used to improve rendering Type3 text which does not require clipping
- Fix for issue 3857: Printer Driver missing output path with jobs in parallel
 
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PDF Creator version 6.5.1.5 - August 9, 2022
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- Fix for issue 3858: PDFCreator 32-bit viewer crashes navigating through pages containing large scanned images
- Fix for issue 3856: UseCropBoxWhenExporting not functioning as expected. The origin was always reset to 0
- Fix for issue 3855: ExportToJPeg randomly fails in v6511
- Fix for issue 3854: PDF document containing Javascript fails to load in ASP.NET but loads in other applications

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PDF Converter version 6.5.1.3 - June 29, 2022
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PDF Creator version 6.5.1.3 - June 29, 2022
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- Fix for issue 3852: Hidden text appearing in PDF Creator
- Fix for issue 3850: PrintPDFDocumentEx prints differently in v65 than v60

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PDF Converter version 6.5.1.1 - May 6, 2022
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- Added the options to save documents to ZuGFerd and Factur-X from CDIntf
- Fix for issue 3844: Slow printing specific PNG file to the PDF Converter
 
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PDF Creator version 6.5.1.1 - May 6, 2022
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- Added support for DeviceN colorspace when the number of input components is more than 4
- Fix for issue 3845: Printing a PDF to some printers cutting the top/left of the page
- Fix for issue 3843: Refreshing or repeatedly opening the document in PDF Creator causes the text to become corrupt
- Fix for issue 3841: Printing to PDF Converter using DrawCurrentPage cause resulting PDF document to be clipped
- Fix for issue 3840: GDI clipping going into an endless loop causing PDF Creator to hang
- Fix for issue 3839: Optimizing document causes hidden objects to become visible where we were unnecessarily removing non-text objects when doing optimization
- Fix for issue 3838: Setting DirectX and RotationType attribute causes document to render incorrectly
- Fix for issue 3835: Adding text object with Arial font to specific PDF document creates invalid characters

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PDF Converter version 6.5.0.9 - March 11, 2022
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- Optimization: Removed duplicate XForm objects created when merging documents
- Fix for issue 3828: Unicode characters are not being set in Subject field of SendMail in CDINTF, added the profix UTF8: in order to convert the subject to UTF8
- Fix for issue 3826: Reprinting a PDF document containing an invalid ToUnicode table through CDINF generates a corrupt PDF document
- Fixed potential security vulnerability with Install.exe due to calls to LoadLibrary API
 
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PDF Creator version 6.5.0.5 - March 11, 2022
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- Fix for issue 3834: Slow rendering of PDF documents containing shading types 4 and 5
- Fix for issue 3831: Copied objects not retaining attributes
- Fix for issue 3830: Document causes PDFCreactiveDoc.exe to crash when closing document due to incorrect Encoding resources
- Fix for issue 3829: ScaleToPrinter produces different resolves in v6.5 that v6.0
- Fix for issue 3825: Calibri font replaced by TMR when file is saved as RTF
- Fix for issue 3823: Document contains an image/annotation that does not render in the PDF Creator due it its transparency group settings
- Fix for issue 3822: PDF document does not export into TIFF correctly
- Fix for issue 3821: PDF document renders differently in the PDF Creator than in AR because of BlendMode attribute

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PDF Converter version 6.5.0.7 - January 7, 2022
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- Fix for issue 3819: Printing specific GDI instructions generates a black image
- Fix for issue 3816: Email delivery fails with error code 550 maximum line length exceeded
- Fix for issue 3809: Error sending emails using SMTP when the password length exceeds 78 characters
- Fix for crash occurring in printer driver when the host application calls ExtEscape with an invalid pointer

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PDF Creator version 6.5.0.5 - January 7, 2022
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- Fix for a crash in acPDFCreatorLib.Net.dll with an application creating multiple threads and in each thread opens the same PDF file
- Fix for setting the Hyperlink attribute when the value points to an internal object (i.e., it starts with a #, like #Pages[2], or #myObjectName ... )
- Fix for issue 3818: Unicode characters being displayed with \ escape character
- Fix for issue 3813: Font not loading correctly when converting from XPS to PDF
- Fixed rendering at correct DPI/ZoomFactor combination when the host application has in its manifest the EnableDpiAwareness entry set to true

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PDF Converter version 6.5.0.5 - October 7, 2021
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- WHQL Certification of the printer driver for Windows 11 (Version 21H2)
- Fix for random heap corruptions when certain files are resaved to PDF/A
- Fix for issues 3803 and 3806: PrintPDFDocument positioning documents differently in v6.5 versus v6.0
- Fix for issues with parsing OCG order strings when appending PDF files containing layers

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PDF Creator version 6.5.0.5 - October 7, 2021
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- Added document attribute that allow retrieving of named destinations through the API
- Fix for issue 3808: Some documents containing incomplete TrueType/CID embedded fonts do not load correctly
- Fix for issue 3807: Resaving specific PDF document with StartSaveEx results in a corrupt output PDF
- Fix for issue 3804: Barcode image being scaled down in size when printing from PDF Creator
- Fix for issue 3802: Append Method generates PDF that Acrobat doesn't read well
- Fix for issue 3801: Setting UseSystemFonts to false causes editing issues with form fields
- Fix for issues parsing FontBBox and W arrays containing indirect objects instead of simple integers
- Fixed flickering issues when rendering with GDI+ at high DPI and zoom levels
- Fix for issues when resaving PDF files containing DeviceGray pattern colorspaces

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PDF Converter version 6.5.0.3 - June 17, 2021
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This is the first public release of version 6.5. It contains the cumulative fixes documented in the v6.0 release notes.
Please check the documentation for new features and enhancements.

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PDF Creator version 6.5.0.3 - June 17, 2021
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This is the first public release of version 6.5. It contains the cumulative fixes documented in the v6.0 release notes.
Please check the documentation for new features and enhancements.

