PDFCure
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Recolour a PDF's Text in One Shot

Recolour a document's text and dark content in one shot.

Most tools run entirely on your device

Select a PDF

Click to choose, or drop a file here

You can also paste (Ctrl+V / Cmd+V)

Most tools run entirely on your device

About changing a PDF's text color

Recoloring a document's text — for a themed handout, better contrast against a colored background, or just personal preference — is another edit that normally means rebuilding the page in a design tool. This tool recolors a document's text and other dark content in one pass.

It re-renders each page as an image with pdf.js, replaces dark pixels (text and similar high-contrast content) with your chosen color while leaving lighter background areas alone, and rebuilds the PDF with pdf-lib — entirely in your browser. As with the background-color tool, this works by re-rendering, so selectable text becomes part of a flattened image in the result.

Supported files

Accepts a PDF and a color. Produces the same PDF with text and dark content recolored throughout.

Is my file uploaded?

No. The text recolor runs entirely in your browser with pdf.js and pdf-lib — nothing is uploaded.

How to Change PDF Text Color

  1. 1

    Select a PDF

    Drop in the document whose text you want to recolor.

  2. 2

    Pick a colour

    Choose the colour for the text and dark content.

  3. 3

    Apply and download

    The darker a pixel, the closer it lands to your colour.

Change PDF Text Color — frequently asked questions

Can I recolour just one paragraph?+

No — this shifts all dark content on every page at once. For targeted edits use Edit PDF Text.

Is there a free way to change a PDF's text colour?+

Yes — this tool recolors the text entirely in your browser, free and with nothing uploaded.

Can I preview the new colour before applying it?+

Yes — a live preview on the current page shows the recolored text before you apply it to the whole document.

Is my file uploaded to recolor it?+

No — the recolor runs entirely in your browser.

Do you upload my files to a server?+

No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.

Is there a file size limit?+

There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.