MergePDF
Merge PDF

Repair PDF

Repair a corrupted or damaged PDF by reopening it and rebuilding its internal structure.

PDF · Up to 50MB per file

Upload OR Drag Files

Support for PDF

or click here and press Ctrl+V / +V to paste a file

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Fix a damaged PDF by rebuilding its structure

Upload a PDF that won't open properly and get back a clean, working file.

1

Upload Your PDF

Add the damaged or corrupted PDF you want to fix.

2

We Rebuild It

We reopen the file and rewrite its internal structure, resolving problems like a broken cross-reference table.

3

Download Your File

Get a clean, working PDF back, ready to download.

Built to Recover What's Recoverable

Everything you need to try to fix a broken PDF.

Enterprise Security

Your files are encrypted with 256-bit SSL and removed from our servers automatically after processing.

Fast Rebuild

Most files are reopened and rewritten in seconds, with no manual steps on your end.

Structural Cleanup

The file is fully re-parsed and re-saved, which fixes common internal issues like broken cross-reference tables.

Unlimited Usage

No file limits and no hidden fees. Attempt to repair as many PDFs as you need, in a single batch.

Clear Success or Failure

If a file is too damaged to open at all, you're told the repair failed rather than getting a broken result back.

Cross-Platform

Works in any modern browser on Windows, Mac, Linux, and mobile devices, with no software to install.

Solutions for Every Need

People repair PDFs that have stopped opening correctly.

Office Admins

Recover a PDF that got corrupted during an interrupted download or an incomplete file transfer.

Students

Fix a thesis or assignment file that suddenly won't open before a submission deadline.

IT Support Staff

Attempt a quick fix on a colleague's corrupted PDF before escalating to more involved recovery steps.

Frequently Asked Questions

What kinds of PDF problems can this fix?

It works well on files with structural issues, like a broken cross-reference table or index, that stop some viewers from opening the file correctly.

Can it recover any corrupted PDF?

No. If the file is too damaged for our engine to open at all, it cannot be repaired this way. Try a different copy of the file if you have one, or a dedicated file recovery tool.

Will repairing the file change its content?

No. The content stays the same. What changes is the file's internal structure, which is rewritten cleanly.

Can I repair multiple PDFs at once?

Yes. Upload several files and each one that's successfully repaired is returned together in a single zip download.

What happens if my file can't be repaired?

You'll see a message telling you the repair was unsuccessful, rather than a broken file being returned to you.

Is it safe to upload confidential documents?

Yes. All uploads happen over an encrypted connection, and both the source file and the repaired PDF are automatically deleted from our servers after processing.

Is repairing a PDF really free?

Yes. There is no cost, no subscription, and no account required.

Can I use this on my phone?

Yes, the tool is fully responsive and works in any modern mobile browser on iOS and Android.