Free PDF Tool · Edit

Replace Text in PDF

Run replace text in pdf in your browser. Free, private, no signup — your selected files are processed in your browser and are not uploaded to our server.

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Drop your file here

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Accepts: .PDF
Note: Overlay mode visually covers detected text matches but leaves the original text in the PDF stream. Permanent mode rasterizes affected pages and removes matched text from the text stream.

About this Replace Text in PDF

Find PDF.js text items containing your search text and replace them visually. Overlay mode covers each detected text run and writes replacement text on top; Permanent mode rasterizes affected pages so detected matched text is no longer kept as selectable PDF text.

Overlay mode is visual cover-up and should not be used for sensitive redaction. Permanent mode rasterizes affected pages, which removes matched text from the PDF text stream but turns those pages into images. For area-based redaction, use the Redact PDF tool.

Your privacy is the default. Your selected files are processed in your browser and are not uploaded to our server; all processing happens client-side using browser PDF libraries such as pdf-lib and PDF.js where needed. Closing the tab clears the working session from this page; downloaded files remain on your device.

This tool is free to use with no signup required. Large files may be limited by your browser’s memory and device performance. Part of PDF Tools Base, a privacy-first collection of 161 PDF utilities. Bookmark the page for next time, and explore related tools in the footer below.

How to use the Replace Text in PDF tool

  1. Upload the PDF you want to edit.
  2. Enter the text to find and its replacement, set an optional page range, toggle case-sensitivity, and choose Overlay or Permanent mode.
  3. Click Process and download the result.

Why use PDF Tools Base?

100% Browser-Based

Replace Text in PDF processes selected files in your browser. Your selected files are processed in your browser and are not uploaded to our server.

No Server Upload, No Signup

Your selected files are processed locally in your browser. No account, no server upload, no email needed.

No Watermark Ever

Outputs are clean. We never stamp our brand or a paywall watermark on your files.

Free to Use

No accounts and no signup. Use the tool as much as you need within reasonable browser limits.

Works on Every Device

Windows, Mac, Linux, iPhone, iPad, Android, Chromebook. Any modern browser.

Built on Open Source

Powered by browser-side PDF libraries such as pdf-lib and PDF.js, depending on the operation.

Common uses for replace text in pdf

Hide a name quickly

Cover before screenshotting.

Mask a typo

Cover the typo, add new text on top.

Anonymise samples

For training data, hide identifying info.

Frequently asked questions

Is Replace Text in PDF safe to use?

Yes. Everything happens in your browser. Your selected files are processed in your browser and are not uploaded to our server. Closing the tab clears the working session from this page; downloaded outputs remain on your device until you delete them.

Do I need to register or sign in?

No. No account, no email, no sign-up. Open the page and start using the tool immediately. Free to use, no signup needed.

Is there a watermark on the output?

No. PDF Tools Base never adds a watermark or branding to your output. Your final file is clean — just what you produced from the original.

Is there a file size limit?

There is no fixed limit. Files are processed in your browser, so RAM, page count, and file complexity affect what is feasible. Phones may struggle with large PDFs; try splitting first or use a desktop browser.

Does this work on mobile devices?

Yes. The tool works on all modern mobile browsers: Chrome on Android, Safari on iOS, Firefox, Edge, Brave. The drag-and-drop also accepts files from your phone’s file manager.