Repair PDF

Rebuild a damaged PDF's structure so it opens again.

Drop a PDF here

Pages appear straight away — nothing is sent anywhere.

Read on this device. No account, no upload. Drop as many files as you like — every one of them is processed.

Nothing starts until you press the button, and nothing is sent when it does.

There is nothing to set. qpdf re-emits every object it can still read into a clean file, and the list below is what that does and does not reach.

What this build recovers

What it cannot recover

Bytes that are not in the file. Nothing can invent page content that was never there.
A file you have no password for. Use Unlock PDF for a document you own.

Engine

The measurement is repeatable: the evidence and the procedure ship with the source.

A file another tool refused as damaged opens here with that file already chosen.

Add a file to start

Runs in this tab. Your file is not uploaded.