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Repair PDF Online Free – Fix Damaged PDFs

If a PDF won’t open, shows “file is damaged”, or was cut off while downloading, we try to rebuild it and recover as many pages as possible.

Free, no sign-upFiles stay on your deviceNo watermark
Drop a damaged PDF here Select PDF file We’ll try several methods to rebuild the file.

How to repair a PDF

  1. Choose the PDF

    Select or drop the file that won’t open.

  2. Repair

    Press Repair PDF. We try a structural rebuild first, then a page-by-page recovery.

  3. Check and download

    See how many pages were recovered and download the repaired file.

Everyday uses

  • Broken downloads – files cut off by a weak connection.
  • Email attachments that won’t open – rebuild the internal index.
  • Old archives – PDFs saved by outdated software.
  • Files from pen drives – recover what you can from a damaged copy.

Good to know

The repair runs three methods in turn: rebuilding the cross-reference table, re-parsing every object, and finally re-rendering readable pages. You’ll be told which method worked.

A badly truncated file may be missing pages entirely — those cannot be recovered by any tool. Keep your original until you have checked the result.

Private by design. Repair PDF works inside your browser. Your file is processed on your device and is not uploaded to our server.

Limits to know before you start

  • Missing data cannot be invented. If part of a file was never downloaded, the pages in that part are gone.
  • The last-resort method saves recovered pages as images, so text on those pages is no longer selectable.
  • A password-protected file needs its password before it can be repaired.

If something goes wrong

The tool asks for a password. The PDF is protected. Type the password you normally use to open it; it is used only in your browser. The new file is not locked.

Some pages are missing. Those parts of the file are gone. Ask the sender for a fresh copy or download it again.

The repaired pages are images. The first two methods did not work, so pages were rebuilt from what could be drawn. Run OCR PDF to make them searchable.

Repair PDF – questions

Can every PDF be repaired?

No. If parts of the file are missing, the pages in those parts are gone. We recover everything that is still readable.

Will repair remove the password?

No. For a locked file you’ll be asked for the password; to remove it afterwards use Unlock PDF.

Is text kept?

With the first two methods, yes. The last-resort method saves pages as images.

This page describes Repair PDF as it works today. If you notice a difference, tell us and we will correct it. See our editorial standards.

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