mupdf-1.26.1

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

List of changes in MuPDF 1.26

• Removed PDF linearization support:

See ​https://artifex.com/blog/mupdf-removes-linearisation for more information.

• Object labels:

Write a comment before numbered objects listing the possible ways it can be reached from the document root.

Enable with mutool show -L, mutool clean -L, and PDF write option "labels".

Library functions pdf_load_object_labels and pdf_label_object.

• Brotli compression:

Experimental feature from latest PDF specification proposal.

• Optional barcode support:

Build with "make barcode=yes". Uses zxing-cpp (zebra crossing) C++ as a third party dependency. Adds mutool barcode sub-command.

To detect barcodes in a PDF:

mutool barcode -d barcode.pdf

To create barcode images as PNG file:

mutool barcode -c -o barcode.png -F qrcode "Hello, world!"

Library functions fz_new_barcode_image and fz_decode_barcode_from_pixmap.

• New Structured Text extraction passes:

Paragraph Breaking: Detect paragraphs from first-line indentation and other heuristics.

Table Hunt: Scan text and try to assemble it into tables with rows and columns.

• New Structured Text extraction options:
  • allow reading raw character or glyph index when unicode is not available
  • collect styles to detect fake bold, underlines, strike-through, etc.
  • clip-rect to only extract text inside the specified area
  • accurate-ascenders to measure ascender data from font outline
  • accurate-side-bearings to measure glyph widths from font outline

• CSV output format (using "Table Hunt" pass on input document).

Command line tool additional options:

mutool poster: new option -m (margin)

mutool show: new option -r (force repair)

mutool clean: --structure=keep to keep tagged content when subsetting pages. WARNING: This option will prevent the file from shrinking, because we must still keep all the objects from deleted pages around.

mutool clean: -t option will always write compact objects mutool clean: -tt option will always pretty-print objects

Useful new C functions and fields:

• fz_stext_char field "color" renamed to "argb" to include alpha channel.
• fz_outline_item: new "flags" and r,g,b color fields.
• pdf_clip_page to filter page contents.
• pdf_add_colorspace to create ICC colorspace object.
• fz_load_user_css to load and set user css in one go.
• fz_new_bitmap_from_image
• fz_new_buffer_from_image_as_pbm
• fz_new_buffer_from_pixmap_as_pbm
• fz_strverscmp
• fz_strcasestr
• fz_format_string %> to output a hex encoded string
• fz_format_string %q and %Q write surrogate pairs

• Java/JNI and mutool run JavaScript bindings have many new functions and features.

Command line tool additional options:

mutool poster: new option -m (margin)

mutool show: new option -r (force repair)

mutool clean: --structure=keep to keep tagged content when subsetting pages. WARNING: This option will prevent the file from shrinking, because we must still keep all the objects from deleted pages around.

mutool clean: -t option will always write compact objects mutool clean: -tt option will always pretty-print objects

Useful new C functions and fields:

• fz_stext_char field "color" renamed to "argb" to include alpha channel.
• fz_outline_item: new "flags" and r,g,b color fields.
• pdf_clip_page to filter page contents.
• pdf_add_colorspace to create ICC colorspace object.
• fz_load_user_css to load and set user css in one go.
• fz_new_bitmap_from_image
• fz_new_buffer_from_image_as_pbm
• fz_new_buffer_from_pixmap_as_pbm
• fz_strverscmp
• fz_strcasestr
• fz_format_string %> to output a hex encoded string
• fz_format_string %q and %Q write surrogate pairs

Java/JNI and mutool run JavaScript bindings have many new functions and features.

• Core library additions:

JSON parser, object model, and printer.

Activity logger API.

Support "overlong null" characters in utf-8 (using "\xC0\x80" to represent \x00 in C strings, without being misconstrued as a string terminator).

• Build system changes:

Cleaned up Makefile cruft and refactored how shared libraries are built.

Removed bit-rotted sections of the Makefile that have not been maintained and no longer work (primarily iOS and MinGW).

Don't build example tools muraster and mupdf-x11-curl by default. These examples can be built with "make extra-apps".

• Miscellaneous improvements and new behavior:

Include more data in structured text XML dumps.

Ignore junk at the start of a PDF file (such as PJL commands) without needing to perform a full repair pass.

Support non-latin/greek/cyrillic/CJK languages in annotations and widgets (requires HTML layout engine).

Use system font callback to look for missing fonts in HTML layout.

Support CSS text fill and stroke properties:

-webkit-text-fill-color -webkit-stroke-color -webkit-stroke-width

Updated unicode line breaking (UAX 14) and upper/lowercase tables to Unicode 16.0.

• Bug fixes and stability improvements:

Many improvements to font subsetting.

Fixed several bugs with undo/redo journal affecting the cache of open pages.

Improved calculation of font ascender/descender values when presented with bad values from font files or PDF files.

Improved logic when repairing broken PDF files.

Improve Type3 font rendering compliance with specification in some edge cases.

• Command line tool additional options:

mutool poster: new option -m (margin)

mutool show: new option -r (force repair)

mutool clean: --structure=keep to keep tagged content when subsetting pages. WARNING: This option will prevent the file from shrinking, because we must still keep all the objects from deleted pages around.

mutool clean: -t option will always write compact objects mutool clean: -tt option will always pretty-print objects

• Useful new C functions and fields:
  • fz_stext_char field "color" renamed to "argb" to include alpha channel.
  • fz_outline_item: new "flags" and r,g,b color fields.
  • pdf_clip_page to filter page contents.
  • pdf_add_colorspace to create ICC colorspace object.
  • fz_load_user_css to load and set user css in one go.
  • fz_new_bitmap_from_image
  • fz_new_buffer_from_image_as_pbm
  • fz_new_buffer_from_pixmap_as_pbm
  • fz_strverscmp
  • fz_strcasestr
  • fz_format_string %> to output a hex encoded string
  • fz_format_string %q and %Q write surrogate pairs

• Java/JNI and mutool run JavaScript bindings have many new functions and features.

[Bruce Dubbs]

Fixed at commits

99c5953dac Update to glib-2.84.2.
fd51e5c3fe Update to libnvme-1.14.
2f2190ea61 Update to valgrind-3.25.1.
c9dd9469d7 Update to mupdf-1.26.1.
d93fa79f93 Update to libxkbcommon-1.10.0.

[Douglas R. Reno]

Release notes specific to 1.26.1:

MuPDF 1.26.1 (2025-05-20)

The 1.26.1 source only release is now available.

    Fix bug relating to outline cycle dection in mutool clean.
    Fix logo image file reference in documentation.