The Random Books, Software, and Thoughts of Michael R Sweet

PDFio 1.6.0 October 06, 2025

PDFio 1.6.0 is a feature release. Changes include:

• Added generation of XMP metadata when writing PDFs (Issue #103)
• Added “standard” PDFIO_CS_CGATS001 color space for non-device CMYK (Issue #104)
• Added CMYK JPEG support with embedded ICC profiles or using the CGATS001 profile (Issue #104)
• Added pdfioFileAddOutputIntent function to adding output intent information to a PDF file (Issue #104)
• Added explicit support for warning messages (Issue #118)
• Added pdfioFileCreateFontObjFromData function for embedding fonts in memory (Issue #120)
• Added support for specifying PDF/A versions for created PDF files (Issue #122)
• Added pdfioContentBeginMarked and pdfioContentEndMarked functions for creating tagged PDF content (Issue #123)
• Added pdfioFileGetLanguage and pdfioFileSetLanguage functions for getting and setting the default/primary language of a PDF file (Issue #124)
• Now add default grayscale, RGB, and CMYK profile resources to pages as needed (Issue #104)
• Fixed unsupported filter error (Issue #130)
• Fixed EOF comment written to the PDF (Issue #136)
• Fixed TTF cmap underflow error.
• Fixed some Clang warnings.

Enjoy!

Download PDFio v1.6.0 Home Page

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iOS/iPadOS/macOS/watchOS 26 Review September 17, 2025

Now that the latest Apple OS’s are out of beta I am getting my devices updated. I’ve seen the various “in depth” reviews, but here are my first impressions.

TL;DR: meh.

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RasterView 1.9.1 September 14, 2025

RasterView 1.9.1 is a bug fix release. Changes include:

• Fixed 16-bit and monochrome viewing support for many color spaces (Issue #23)

Enjoy!

Download RasterView 1.9.1 Install RasterView 1.9.1 Snap Home Page

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HTMLDOC 1.9.21 September 12, 2025

HTMLDOC 1.9.21 is a bug fix release. Changes include:

• Updated HTTP/HTTPS connection error reporting to include the reason.
• Updated markdown parser.
• Updated the HTTP/HTTPS connection timeout to 5 minutes (Issue #541)
• Fixed a bug in the new PDF link code (Issue #536)
• Fixed a bug in the number-up code (Issue #539)
• Fixed a regression in leading whitespace handling (Issue #540)
• Fixed a bug in numbered heading support (Issue #543)
• Fixed a bug with setting the header on the first page (Issue #544)
• Fixed paths in the HTMLDOC snap (Issue #545)

Binaries are available from Github for Windows 10+ and macOS 11+, and through the Snapcraft store for Linux.

Enjoy!

Download HTMLDOC 1.9.21 Install HTMLDOC 1.9.21 Snap Home Page

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PDFio 1.5.4 August 26, 2025

PDFio 1.5.4 is a bug fix release. Changes include:

• Updated indirect reference reading code to limit the range of generation numbers.
• Updated error messages for too large tokens (Issue #131)
• Fixed a JPEG copy bug (Issue #132)

Enjoy!

Download PDFio v1.5.4 Home Page

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PDFio 1.5.3 May 03, 2025

PDFio 1.5.3 is a bug fix release. Changes include:

• Fixed decryption of PDF files “protected” by 40-bit RC4 (Issue #42)
• Fixed decryption of UTF-16 strings (Issue #42)
• Fixed decryption of PDF files with large permission values.
• Fixed support for EncryptMetadata key in the encryption dictionary.
• Fixed pdfioObjCopy and pdfioPageCopy to properly identify the source PDF file being used (Issue #125)

Enjoy!

Download PDFio v1.5.3 Home Page

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PDFio 1.5.2 April 12, 2025

PDFio 1.5.2 is a bug fix release. Changes include:

• Updated maximum allowed PDF string size to 64k (Issue #117)
• Updated dictionary reading code to discard duplicate key/value pairs with a warning message (Issue #118)
• Fixed form detection in pdfioinfo example code (Issue #114)
• Fixed parsing of certain date/time values (Issue #115)
• Fixed support for empty name values (Issue #116)
• Fixed range checking in pdfioImageGetBytesPerLine (Issue #121)

Enjoy!

Download PDFio v1.5.2 Home Page

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PDFio 1.5.1 March 28, 2025

PDFio 1.5.1 is a bug fix release. Changes include:

• Fixed output of special characters in name values (Issue #106)
• Fixed output of special characters in string values (Issue #107)
• Fixed output of large integers in dictionaries (Issue #108)
• Fixed handling of 0-length streams (Issue #111)
• Fixed detection of UTF-16 Big-Endian strings (Issue #112)

Enjoy!

Download PDFio v1.5.1 Home Page

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