Invert PDF Colours
EditInvert every colour on every page so white pages become black — easier on the eyes and great for night reading on bright screens.
How to use Invert PDF Colours
- Open this page in any modern web browser — no download or installation required.
- Click Add file or drag and drop your PDF onto the drop zone.
- Adjust the available settings to fit your needs.
- Click the action button and save the processed file — the result is ready instantly.
Files never leave your browser. No upload to any server.
Processing runs locally on your device. No queues, no waiting.
No signup, no watermarks, no limits. Use as many times as you like.
Why use Invert PDF Colours on PDF Modern?
PDF Modern’s invert pdf colours tool processes your file entirely within your web browser using modern WebAssembly technology. Unlike traditional online PDF services that require uploading your documents to remote servers, your files never leave your device — ensuring complete privacy and security. Processing happens at the full speed of your CPU, not limited by upload or download bandwidth, so even large files are handled in seconds. There are no file-size restrictions, no daily usage caps, no watermarks on output, and no account creation needed. It is a fully free, open tool built for everyday document workflows at home, school or the office.
Frequently asked questions
Will photos look weird?
Yes — photos invert too, so use this for documents with text and diagrams.
Is the text still selectable?
Pages are rasterised, so the result is image-based. Use the original PDF if you need text selection.