FlashFile

Enhance PDF

Repair PDF

Rebuild a damaged or partly corrupted PDF with the qpdf repair engine, running in your browser.

Runs entirely in your browser — the file never leaves this device

✅

100% FREE

No subscription required

🔒

COMPLETELY PRIVATE

Your files are never uploaded anywhere

⚡

CLIENT-SIDE PROCESSING

All conversions happen in your browser only

🛡️

YOUR DATA IS YOURS

We process everything locally on your device

Drop your file here

or click to choose from your device

Select file

About Repair PDF

Fix files that won't open, show errors, or were partly downloaded. FlashFile uses the qpdf engine to rebuild the file's internal structure.

How to use Repair PDF

  1. 1Click "Select file" or drag and drop a damaged PDF into the box above.
  2. 2Press "Run Repair PDF". The conversion runs on your own device, usually in a few seconds.
  3. 3Download a repaired PDF. Nothing is uploaded or stored on any server.

Tips for the best result

  • Repair works best when the page content is intact and only the structure is damaged.

Frequently asked questions

Is the Repair PDF tool free?

Yes. It is completely free, with no sign-up, no watermark and no daily limit.

Are my files uploaded to a server?

No. FlashFile processes your files entirely inside your browser, so they never leave your device.

Is there a file size limit?

There is no fixed limit. Files up to about 200 MB work on most computers; very large files depend on your device memory.

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