Basically, I want a viewer which has a night mode or a dark mode so that I can change a pdf with a white background and black text to a dark background and light coloured text.
Software Recommendation – Is There Any PDF Viewer with Dark Mode?
pdfsoftware-recommendation
Related Solutions
Using lpr send the file to the print server, which should be CUPS which has it's own mechanism for converting PDFs suitable for the printer, but can be different to Evince and Adobe Acrobat Reader as they are three separate implementations.
You may be able to influence the CUPS engine via the CUPS website: http://localhost:631/
Adobe Acrobat Reader is likely to be the most accurate and you can force it to send a completely rasterized image to the printer.
Evince has pretty much no tweaking available.
edit: CUPS uses pdftops and friends to print PDF documents, this is based on Xpdf which is the same ancestry as Evince.
Adobe Acrobat Reader includes additional options to attempt fixing background colours and an option that hints that it is your printer messing up the final copy:
gImageReader is a simple GTK+ front-end to tesseract-ocr.
sudo apt-get install gimagereader tesseract-ocr
sorry for the german text
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Best Answer
This method is only for text only documents. Otherwise the image colors will be inverted.
You can install Evince document viewer from this link and open it.Then goto the options on the top right corner as seen in the picture.
Then select Inverted colors. This will help you to read white text on a black background. In Evince document viewer 3.30.1+ select Night Mode.