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Mofumi PDF

Background Color

Give PDF pages a coloured background, like sepia paper or a soft tint.

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Upload PDFDrop files here or click to chooseAccepted: PDF Files never leave your device

About this tool

Background Color paints a colour behind the content of each page — great for a warm “paper” look, coloured section dividers or reducing glare.

“Behind content” draws the colour underneath everything, so it shows wherever the page was transparent. If your pages were scanned or have an opaque white background, use “Tint (multiply)”, which colours white areas while keeping dark text dark.

No rasterising: the colour is a vector rectangle, so text stays sharp and the file barely grows. Processed locally in your browser.

Engines: pdf-lib

How to use

  1. 1

    Open your PDF.

  2. 2

    Pick a colour and how it is applied.

  3. 3

    Click “Set background” and download.

Use cases

  • Comfortable reading

    A cream background is easier on the eyes than bright white.

  • Section colours

    Colour-code chapter divider pages.

  • Presentations

    Give exported slides a branded background.

Frequently asked questions

The colour doesn't show on my scanned PDF.

Scans have an opaque white image on top. Choose “Tint (multiply)”.

Can I colour only some pages?

Yes, enter a page range.

Will it print?

Yes, the background is part of the page and prints like any other content.

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