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):

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 CGO_CFLAGS_ALLOW='-Xpreprocessor' may need to be executed to run/build.

The GUI is developed with Golang QT bindings:

Get the project and build:

  
git clone https://github.com/rootVIII/pdfinverter.git
cd <project root>
go build -o bin/pdfinverter
./bin/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.
  

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This project was developed on macOS Big Sur 11.0.1