Repair PDF

Recover data from a damaged or corrupt PDF.

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Processed on your device. This tool runs entirely in your browser, your file is never uploaded, so nothing is stored, logged or transmitted.

About the Repair PDF

A PDF that will not open is usually not destroyed. Far more often its cross-reference table — the index telling a reader where each object lives — has been damaged by an interrupted download, a failed email transfer, a crash during save or a faulty USB drive, while the page content sits intact behind it.

This tool reads the document as tolerantly as it can, ignoring the broken index and invalid objects, then writes out a clean, correctly structured file. That recovers a large proportion of files that report as damaged. It runs in your browser, so a document you are anxious about is never uploaded anywhere.

It's part of the PDF collection on Toolzy, a growing platform of 135+ free, privacy-first tools built for speed and a great experience on every device.

Also known as: fix, damaged, corrupt, recover.

Why use the Repair PDF?

  • No watermarks on your output
  • Handles multi-page and large PDFs
  • Keeps your original formatting and quality
  • Works on Windows, Mac, Linux, Android and iPhone

When to use it

  • Preparing documents for email or printing
  • Combining scanned pages or invoices
  • Reducing file size to meet upload limits

How to use the Repair PDF

  1. Open the Repair PDF. Open the Repair PDF on this page, there is nothing to install and no account needed.
  2. Add your input. Add your file by clicking the upload area or dragging it in. It is read on your device, not uploaded.
  3. Adjust options. Choose any options you need, the Repair PDF updates instantly.
  4. Get your result. Click the action button to download or copy your result. It is 100% free.

Frequently Asked Questions

What kinds of damage can actually be repaired?
Broken cross-reference tables, invalid object references and malformed structure — the causes behind most "cannot open, file is damaged" errors. The tool rebuilds the document structure around the content that is still readable.
What cannot be repaired?
Truncated downloads where page content is genuinely missing, files overwritten by other data, and documents encrypted with a password you do not have. If the bytes are gone, nothing can reconstruct them.
Will I lose anything in the repair?
The tool reports how many pages it recovered so you can check against what you expected. Unrecoverable objects are dropped rather than allowed to break the file, so compare the output with the original before discarding your copy.
Is my damaged file uploaded?
No. The repair runs entirely in your browser. A corrupted file that may hold your only copy of a document is never transmitted.
Is my data private?
The Repair PDF runs entirely inside your browser. Your file is never uploaded, so there is nothing for us to store, log or delete, your data stays on your device from start to finish.
Is the Repair PDF free?
Yes, the Repair PDF is 100% free with no watermarks, no limits and no account needed.
Does it work on mobile?
Yes. The Repair PDF works on any modern browser across desktop, tablet and mobile.

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