DoMyPDF

Compare two PDFs

Compare the text of two PDFs and see exactly what was added and removed. Free and private.

PDFDrop your files herePDF, up to 50 files
Compares the text, not pictures or layout.Runs in your browser. Your file isn’t uploaded. 3 of 3 free files left today.

How to use Compare PDF

  1. Step 1Choose the old PDF, then the new one.
  2. Step 2Press Compare.
  3. Step 3Read the changes, highlighted page by page.

Why use DoMyPDF’s Compare PDF

Free to use

Compare PDF is free for 3 files a day with no sign-up and no watermark. Premium removes the daily limit for heavy use.

Private by design

It runs inside your browser, so your file never leaves your phone or computer, and it keeps working on a slow connection.

Works on every device

Use it on iPhone, iPad, Mac or a Windows PC, in any modern browser. Nothing to install, and you can add DoMyPDF to your home screen.

Quality first

Gives you the result in seconds, with no watermark added to your pages.

Tips for the best result

  • Compare PDF saves a new copy; your original file isn’t changed, so you can always start again.
  • Working on a phone? Large PDFs with many photos are quicker if you compress them first.
  • Combine tools for bigger jobs: merge files, then add page numbers, then compress the result.
  • Before sharing a document with private details, use Redact PDF to remove them for good, then Lock PDF to add a password.
  • Every page stays sharp: text and pictures are kept at their original quality unless you choose to compress.

Compare PDF questions

Is Compare PDF free?

Yes. Every tool is free for 3 files a day, with no sign-up. Premium removes the daily limit.

Is my file safe?

Your file is processed inside your browser and is never uploaded.

Does Compare PDF work on iPhone, iPad and Mac?

Yes. Compare PDF works in Safari, Chrome, Edge and Firefox on iPhone, iPad, Mac and Windows computers, with nothing to install. You can also add DoMyPDF to your home screen to open it like an app.

Is there a file size limit?

No fixed limit: Compare PDF runs on your own device, so it handles files as large as your phone or computer can open. Very large files (over about 100 MB) can be slow on older phones.

Do I need an account?

No. There is no sign-up and no email needed. Open the tool, choose your file and download the result.