Your files stay on your device

File processing runs in your browser. Documents are not uploaded to our servers. The site may download processing engines and send usage or feedback events without file contents.

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Repair PDF

Rescue a damaged PDF report or portfolio by rebuilding its internal structure into a new, readable copy on your device. Files stay in your browser.

Small converter download on first use.

One PDF, up to 20 MiB. The original file stays unchanged.

Try an example

Download sample

The sample has a broken cross-reference table. The repaired copy should open normally with both pages and Total: 148.50.

What to expect

QPDF reads the file, rebuilds a broken or missing cross-reference table, skips unreadable objects where it can and writes a new, consistent PDF. Your original file stays unchanged. Content that is missing or overwritten in the damaged file cannot be restored, so check every page of the repaired copy.

One PDF up to 20 MiB; output up to 30 MiB. Processing stops after 30 seconds. Password-protected PDFs must be unlocked first. Rewriting a PDF can invalidate digital signatures.

Encrypted file?Unlock PDF with a known password first.

The first run may download converter files and take a moment. If it fails, check your connection or try a smaller file. Cancel stops active processing; you can choose another file and retry.

Engine licenses and source code

A practical guide

Repair a damaged PDF and recover a readable copy

  1. Choose the damaged PDF report or portfolio.
  2. Repair it; the tool rebuilds the file's structure.
  3. Review every page of the repaired copy at full size.

Try this example

Repair a 16-page portfolio PDF that shows a read error; the rebuilt copy should open with all readable pages and images.

Before you start: Images or pages whose data was lost cannot be restored; unlock protected files first and keep the original until you check the copy.