Repair PDF

Rebuild a damaged PDF that won’t open, or open with errors, and save what can be saved.

or drop a PDF anywhere on this page · up to 20 MB

Encrypted on our server, deleted right after you download it.

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About Repair PDF

Repair PDF fixes files that won’t open, open with errors, or were cut short by a broken download. First the file’s internal structure is rebuilt, keeping everything; if that isn’t enough, every readable page is redrawn into a fresh PDF.

You’re told which kind of repair worked, so you know whether anything (like links or form fields) may have been lost.

Why use hellpdf

  • Rebuilds broken cross-reference tables
  • Recovers truncated files
  • Falls back to redrawing readable pages
  • Clear report of what was fixed

How to repair PDF

  1. Add your file. Pick it or drop it on the page. It's sent over HTTPS and stored encrypted with a key only your browser holds.
  2. Choose your settings. Then press the button; you’ll see progress as it uploads and works.
  3. Download. We delete our encrypted copy as soon as your browser has it, and anything left over after an hour.

Repair PDF: frequently asked questions

Can every PDF be repaired?

Not always. If the parts of the file that hold the pages are missing, nothing can bring them back; you’ll get a clear message.

Why won’t my PDF open?

Common causes are an interrupted download, a failed email attachment or a bug in the program that saved it. Repair fixes most of these.

Is it safe for confidential files?

Your file is sent over HTTPS, encrypted on arrival with a key only your browser keeps, processed in an isolated sandbox, and deleted as soon as you download the result (at most one hour later). Files can be up to 20 MB.

Is it really free?

Yes. It’s free with no sign-up, no watermark and no daily limit on the tools that run in your browser.

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