How to Use Repair PDF
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1. Upload the Broken PDF
Drag and drop the corrupted or damaged PDF file onto the drop zone or click to browse and select it.
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2. Attempt Repair
Click 'Repair PDF & Download'. The tool will try to load and rebuild the document page by page using pdf-lib.
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3. Download the Repaired File
If repair succeeds, the tool will download a rebuilt PDF. Pages that could not be recovered are skipped.
The Technical Details
This interactive web utility provides fast, reliable, and completely private data transformations. In modern workflows, quick formatting, conversions, or estimations are essential. By running all logic entirely in your browser with client-side JavaScript, this tool guarantees that your data never leaves your machine. This approach delivers maximum performance and absolute data privacy, as no information is ever sent to a server.
Frequently Asked Questions
What types of damage can this tool fix?
It can recover PDFs with minor structural corruption, incomplete writes, or truncated data. Severely corrupted files where core structure is lost may not be recoverable.
What happens if a page cannot be recovered?
The tool skips unrecoverable pages and includes only the pages it can successfully read. The download contains whatever content was retrievable.
My repaired PDF is missing content â why?
If the original file was heavily corrupted, some data may be permanently lost. The tool reconstructs what it can from the remaining valid data.
Is my file sent to a server for repair?
No. The repair process runs entirely in your browser using pdf-lib. Your file is never uploaded or stored anywhere.