All tools/PDF security

Compare PDF

Find every difference between two versions of a document.

Select the two PDFs to compare

or drop them anywhere on this page

Processed on your device. Never uploaded.

1

Add your files

Choose or drop your files. You can add more at any time.

2

Adjust the options

Add the original first, then the new version.

3

Download the result

Save it, or send it straight on to another Paperwing tool.

About Compare PDF

Compare PDF finds the differences between two versions of a document. Add the original and the new version to see removed and added text page by page, and download a PDF report with every change marked in red.

Why use Paperwing

  • Private by design Files are processed in this tab with JavaScript. Nothing is sent to a server, so contracts and medical records stay with you.
  • No queues, no waiting There is no upload step, so a 50-page merge finishes about as fast as your device can read the files.
  • Chain your tools Finished merging? Send the result straight to Compress, Sign or Page numbers without downloading in between.

Frequently asked questions

Is Compare PDF free?

Yes. Compare PDF is free to use, with no sign-up, no watermark and no daily limit.

Are my files uploaded to a server?

No. Paperwing processes your files inside your browser, on your own device. They are never uploaded, and they are cleared from memory when you close the tab.

Does it work on my phone?

Yes. Paperwing works in any modern browser on Windows, Mac, Linux, Android and iPhone, with nothing to install.

Is there a file size limit?

Each file can be up to 300 MB. Very large files depend on your device's memory, so a computer handles them faster than a phone.

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