pptx-surgeon

Microsoft PowerPoint OpenXML File Surgeon

Abstract

This is a small utility for performing some font-related surgical operations on Microsoft PowerPoint OpenXML files (PPTX). Microsoft PowerPoint, as of at least January 2020, can produce PPTX files which are "broken" when it comes to fonts:

1. Broken Font Embedding: Sometimes it contains some font embedding information, but the actual font data is partially missing and PowerPoint is not willing to correct this through any means of its user interface (including disabling and re-enabling the font embedding option or exporting and re-importing via XML format). For this, pptx-surgeon provides the possibility to completely remove all font embedding information which resets the PPTX file back to a consistent state (where PowerPoint again is willing to correctly embed the fonts from scratch).

2. Hidden Font References: Often it contains references to previously used fonts, although no user interface reachable shape any longer uses these fonts. For this, pptx-surgeon provides the possibility to map font names in both the theme, slide master and slides. This gets rid of the previous references to old fonts.

Installation

• download pre-built binary for Windows (x64):
  https://github.com/rse/pptx-surgeon/releases/download/0.9.6/pptx-surgeon-win-x64.exe

• download pre-built binary for macOS (x64):
  https://github.com/rse/pptx-surgeon/releases/download/0.9.6/pptx-surgeon-mac-x64

• download pre-built binary for GNU/Linux (x64):
  https://github.com/rse/pptx-surgeon/releases/download/0.9.6/pptx-surgeon-lnx-x64

• via Node.js/NPM for any platform:
  $ npm install -g pptx-surgeon

Usage

$ pptx-surgeon \
  [-v|--verbose <level>] \
  [-k|--keep-temporary] \
  [-o|--output <pptx-file>] \
  [-d|--font-dump-info] \
  [-r|--font-remove-embed] \
  [-m|--font-map-name <name-old>=<name-new>] \
  [-c|--font-cleanup <name-primary>,<name-secondary>,...] \
  <pptx-file>

Examples

# show all font information
$ pptx-surgeon -d sample.pptx

# patch PPTX by removing font embeddings
$ pptx-surgeon -r -o sample-patched.pptx sample.pptx

# patch PPTX by mapping font names
$ pptx-surgeon -m "Arial=msg Text" -o sample-patched.pptx sample.pptx

# patch PPTX by performing an all-in-one cleanup
# (the listed fonts are all kept and everything else is mapped to "msg CI Text")
$ pptx-surgeon -c "msg Text,msg Edge,msg Head,msg Node,msg Code,msg Deco,Wingdings,Symbol" \
  -o sample-patched.pptx sample.pptx

License

Copyright © 2020-2021 Dr. Ralf S. Engelschall (http://engelschall.com/)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.