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    Recent tools are saved on this device only when you choose to remember them. Files and text are never saved.

    PDFPDF

    Change the background colour of a PDF

    Give pages a soft colour that is easier on the eyes. Text stays sharp and selectable. Nothing is uploaded.

    • Your files are never uploaded
    • Processed on your device
    • Works offline
    • Free, no sign-up

    Drop your PDF files here

    PDF files · up to 10 files, 500 MB each

    or paste with Ctrl+V

    Settings

    #FFF8E1

    Nothing is uploaded

    How it works

    1. Add your PDF

      One or more files.

    2. Pick a colour

      Soft cream is gentle for long reading.

    3. Download

      Check the preview and save.

    Content stays as it is

    The colour is painted under the page content, so text and drawings are not changed and stay selectable.

    Scanned pages are pictures that cover the whole page, so the colour does not show on them.

    Private

    Your file is processed inside your browser with the open-source pdf-lib library. It is never uploaded, and nothing is saved after you close the page.

    Questions

    Are my files uploaded?

    No. The tool runs inside your browser, so your files are opened and changed on your own device. They are never sent to us or to anyone else.

    Why do scanned pages not change?

    A scan is a picture that covers the page, including its white paper. Use Adjust PDF colours instead.

    Is it free?

    Yes. Free to use, with no sign-up, no watermark and no daily limits.

    More free tools that run on your device. No uploads