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rootVIII
138 Stars 5 Forks 64 Commits 0 Opened issues

Description

darken (or lighten) a PDF

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PDFINVERTER - darken (or lighten) a PDF

PDFInverter (GUI and CLI) will create a new PDF at the specified location from a source PDF. All colors will be inverted (original shown on left):

example1
example2
example3

Unfortunately page links are not preserved, but this program will darken PDFs making them suitable for night reading.

A 2-3 page PDF will invert very quickly. However a 400 page PDF may take 3-4 minutes.

This project should build on any platform with ImageMagick bindings for Golang. export CGOCFLAGSALLOW='-Xpreprocessor' may need to be executed to run/build.

The GUI is developed with Golang QT bindings: example2

go get and run/build yourself:
  
go get github.com/rootVIII/pdfinverter
  
command-line usage:
  
# Required
-i     input PDF file path
-o     output PDF file path

Note:  If no command line arguments are provided, the GUI version will open.
  


This project was developed on macOS Big Sur 11.0.1

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