Invert PDF Colours
Invert PDF colours free, entirely in your browser — switch a document to a dark, light-on-black view for easier reading at night.
- Add
- Adjust
- Make
- Keep
How to use this tool
- Add a PDF using the file picker or drag-and-drop.
- Pick a transform — full invert, grayscale, sepia, or the dark-reading preset — and choose whether it applies to all pages or a specific selection.
- Set the output resolution; stick with the default unless you need finer detail, since higher DPI produces much larger files.
- Review the preview summary, then download the transformed PDF.
About this tool
Invert PDF colours free, entirely in your browser — switch a document to a dark, light-on-black view for easier reading at night. Nothing is uploaded to a server; the colour-inverted PDF is generated locally and downloads straight from your device in seconds.
Privacy & limitations
Every transformed page is rasterized into a single image, so its text and shapes become non-selectable and non-searchable — if you need to keep the text layer, apply the transform to a copy. Rasterized pages are usually larger than the source PDF's vector content; the higher the DPI, the bigger the resulting file. Password-protected PDFs must be unlocked first using Remove Password.
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