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Repair PDF

Fix a damaged or corrupted PDF and recover its content. Processed entirely in your browser — nothing is uploaded.

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Drop a damaged PDF here or browse

One PDF file · Max 40 MB · for higher limits

What is Repair PDF?

Repair PDF attempts to fix damaged or corrupted PDF files so they can be opened normally again. It works by loading the file using pdf-lib's most lenient parsing mode — which skips invalid objects, corrects malformed cross-reference tables, and caps out-of-spec numbers — then re-saving the result as a clean, structurally valid PDF. It's a fast, private, browser-based fix for many common PDF errors.

How It Works

Upload the damaged PDF. The tool tries to load it using every available lenient option, then immediately saves a fresh copy with a normalized structure. If the file can be read at all, the repaired version downloads automatically. The result card tells you how many pages were recovered and whether any warnings were encountered during the process.

Key Benefits

  • 100% browser-based — your PDF is never sent to any server
  • Fixes corrupt cross-reference tables and object streams
  • Rebuilds malformed trailer dictionaries automatically
  • Reports page count and any warnings after repair
  • Works on PDFs that fail to open in strict PDF readers
  • Free to use — no account or registration needed

Frequently Asked Questions