catScan

Repair PDF

Recover damaged PDFs or ones that don't open properly.

Passes through our server, never stored

  1. 1Choose the files
  2. 2Arrange and adjust
  3. 3Download

You need to sign in to use the tools. It's free.

8 free uses a month · Plus is unlimited

If a PDF doesn't open, shows errors or appears blank, try rebuilding it. The repair reconstructs the internal structure of the file to recover as much content as possible.

How to repair a PDF in 3 steps

  1. Select the damaged PDF.

  2. Start the repair: the file is processed in memory on our server.

  3. Download the repaired PDF.

Why use catScan

  • Never stored

    The file passes through our server only to be converted: it is processed in memory, never stored or logged, and deleted as soon as you get the result.

  • Free to start

    Sign in with Google and get 8 free uses per period, shared with the catScan app. 1 use = 1 downloaded file; if something fails, it doesn't count.

  • Nothing to install

    It works in any modern browser on computer, tablet or phone. To scan paper with your camera, use the Android app.

Frequently asked questions

Can every PDF be repaired?

Not always. If the file is badly truncated or the content is missing, only the parts that remain can be recovered. If it can't be repaired, no use is deducted.

Is my file kept on the server?

No. It is processed in memory, it is not stored or logged, and it is deleted as soon as you receive the result.

Are my files stored?

No. The file passes through our server only to be converted: it is processed in memory, it is not stored or logged, and it is deleted as soon as you receive the result.

Is it free?

Yes. Sign in with your Google account and you get 8 uses per period on the free plan (1 use = 1 downloaded file; if something fails, it doesn't count). catScan Plus, bought in the Android app, is unlimited on the web and in the app.

Does it work on my phone?

Yes. It works in any modern browser on Android, iPhone, Windows, Mac or Linux, with nothing to install. The catScan Android app also lets you scan documents with the camera.