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Invert PDF Colours

Inverts every page. Easier on the eyes in a dark room, and it can make a faint or yellowed scan considerably more legible.

Local processingAccepts PDFUp to 100 MB

Drop your file here

PDF · up to 100 MB each · you can also paste from the clipboard

Nothing is processed until you press the button below.

What it will not do

  • Pages are rendered and rebuilt, so the text layer is replaced by images and the document stops being searchable.
  • Inverting uses considerably more ink if printed. This is for screens.

Where this runs

Invert PDF Colours runs entirely inside this page. Your file is read by the browser, processed in memory and handed back to your downloads folder. It is never sent to a server, because there is no server involved in this tool.

Read the full processing model →