Compare PDF Files

Compare the text of two PDFs and see what was added or removed, word by word.

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Your PDF is processed on your device and is never uploaded. Only text is compared, not layout or images. Scanned PDFs without a text layer cannot be compared.

At a glance

Runs
In your browser, on your device
Works with
PDF
Largest file
50 MB
Cost
Free, no account needed

How to use Compare PDF Files

  1. Choose the original and the revised PDF.
  2. Select Compare.
  3. Read the highlighted changes.

Privacy and limits

This tool runs in your browser. The file you choose is read and processed on your device and is never uploaded to our server. Because your device’s memory does the work, files are limited to 50 MB.

Questions

Is Compare PDF Files free to use?
Yes. You do not need an account and there is nothing to pay.
Is my file uploaded anywhere?
No. The file is processed inside your browser tab and stays on your device. Closing the tab clears it.
Is there a file size limit?
There is no upload limit because nothing is uploaded, but your device’s memory is used. This tool is set to accept files up to 50 MB.