MiniPNG

Repair Corrupted PDF Files Online

Fix Damaged, Unreadable PDF Files and Download Them Instantly

100% Free Secure & Private
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Repair a damaged or corrupted PDF — nine recovery strategies, one clean result

A broken PDF usually isn't broken in just one way, so this tool doesn't try one fix. It runs nine recovery strategies in order, from lossless to aggressive, and keeps the first result that comes back structurally clean.

It fixes damage most tools refuse to touch

One strategy rebuilds the object table directly from raw file syntax and re-points a destroyed /Root reference at the real catalog — exactly the kind of damage that makes qpdf, MuPDF, pikepdf and pdftk refuse the file outright.

A last resort that still saves your page

If a page's own objects are truly beyond repair, a final pass copies the document page by page and rasterises that one page instead of dropping it — so one unreadable page can't take the whole file down with it.

The damage it actually recognizes

Broken cross-reference tables, missing %%EOF or %PDF headers, garbage prepended before the header, corrupt object streams, and even a file that's both encrypted and damaged, given the right password.

Honest reporting, not silent guesses

The response states exactly which pages, if any, could not be recovered, rather than quietly handing back a file with missing content.

What you get

  • Nine recovery strategies tried automatically, from lossless to aggressive
  • A clear report of what was wrong and what could or couldn't be recovered
  • Free, with nothing stored for longer than an hour

What's next?

Once your file is repaired, Compress PDF can shrink it back down, Remove PDF Metadata strips any leftover trace of the tool that originally damaged it, and Merge PDF can combine it with other files once it's clean.

Frequently Asked Questions

Broken or missing cross-reference tables, corrupt startxref pointers, missing %%EOF or %PDF headers, garbage prepended before the header, deleted trailers, corrupt object streams, and even a destroyed /Root reference most tools refuse to touch.

It runs nine recovery strategies in order, from lossless to aggressive, and keeps the first clean result. One strategy rebuilds the object table directly from raw file syntax and re-points a destroyed catalog reference.

Only pages whose underlying data is truly gone, and the response tells you exactly which ones. As a last resort, an unreadable page is rasterised so its appearance survives even when its structure doesn't.

Yes, as long as you provide the correct password — decryption happens first, then repair.

The response states exactly what was wrong and whether recovery was full or partial — and it only reports full recovery when nothing was lost and the result is structurally clean.

Using Repair PDF is quick and easy: upload up to 20 file(s) (.pdf) from your device, Google Drive, or a direct URL, adjust the settings to fit your needs, then click the 'Repair PDF' button. Your files are processed in seconds and ready to download right away.

Absolutely. Your files are uploaded over a secure encrypted connection (HTTPS) and processed automatically — no one ever views them. All files are automatically deleted from our servers within 1 hour, and you can remove any file instantly yourself using the trash icon.

Yes! Repair PDF is completely free. No registration, no email address, and no hidden costs — simply upload your files and download the results.

No downloads or installation required. MiniPNG works entirely online in your web browser, so you can use it on any desktop, laptop, tablet, or phone — Windows, Mac, Linux, Android, or iOS.

You can upload files up to 200MB each. This limit keeps processing fast and reliable for everyone.

We'd love to hear from you! Whether you found a bug, need help, or want to suggest a new tool, reach out through our Contact Us page and our team will get back to you quickly.