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PDF Repair Tool

Fix and recover damaged or corrupted PDF files. Re-saves the PDF with corrected structure.

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Click or drag a damaged PDF here
ℹ️ This tool re-reads and re-writes the PDF structure using pdf-lib. It can fix many common corruption issues including incorrect cross-reference tables, encoding issues, and structural errors.

What is this tool?

A PDF repair tool is a free online service that attempts to fix and recover corrupted or damaged PDF files. When a PDF will not open, displays errors or shows garbled content, the repair tool reconstructs the file structure to restore access to the document.

How to Use

1
Upload your damaged PDFClick or drag and drop the corrupted PDF file that will not open or is displaying errors.
2
Repair is attempted automaticallyThe tool analyses the PDF structure and attempts to reconstruct damaged sections, fix broken cross-references and recover embedded content.
3
Download the repaired PDFIf repair is successful, download the recovered PDF. The tool shows a success message and the extent of repairs made.

Common Uses

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File Recovery

Recover access to important documents that became corrupted during download, transfer or storage.

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Storage Failures

Repair PDFs damaged by hard drive errors, USB corruption or incomplete file transfers.

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Download Corruption

Fix PDFs that downloaded incompletely and will not open in any PDF reader.

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Archive Recovery

Recover old or archived PDF files from backups that have degraded over time.

Frequently Asked Questions

What causes PDF corruption?

Incomplete downloads, storage device failures, file transfer errors, virus infections, software crashes during saving and file system corruption are common causes.

Can all corrupted PDFs be repaired?

Not always — repair success depends on how severely the file is damaged. Minor structural corruption is often fixable. Severely damaged files may only be partially recoverable.

What if the repair fails?

If repair fails, try opening in a different PDF reader (Chrome browser, Preview on Mac), check if you have an older backup copy, or contact the sender for a fresh copy.

Does repair affect PDF quality?

Successful repair restores the PDF to working condition without affecting quality. In some cases, severely corrupted sections cannot be recovered and may appear blank or garbled.