Make PDF negative: invert colours for printing and design
1 min read·25 July 2026
An inverted PDF has reversed colours — white becomes black, black becomes white. Useful for printing on dark materials, creative design, or night-mode-style display. PDFrust does it free.
What is colour inversion?
Inverting replaces every colour with its complementary colour. White (RGB 255,255,255) becomes black (0,0,0), red becomes cyan, blue becomes yellow. It gives a dramatic negative-film effect to the document.
When to invert?
Use inversion for: printing on black paper or dark media (silkscreen, laser etching), creative designs with high contrast, simulating night mode for presentations, or technical drawings where dark lines on light backgrounds are reversed.
Invert PDF colours
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Difference from greyscale and sepia
Greyscale removes colour. Sepia gives warm brown tones. Inversion reverses all colours — completely opposite result. All three are one-way operations.
Black text on white background
Most common use case: a document with black text on white paper becomes white text on black background. Ideal for dark or night-mode presentations.
Printing after inversion
Note that an inverted document when printed on white paper uses a lot of toner/ink for the black background. This is more expensive. Plan this consciously for large print runs.
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