Repair PDF
Attempt to recover and fix damaged or corrupted PDF files.
How to repair a damaged or corrupt PDF online
Upload the damaged PDF
Drag the file that won't open correctly, or click to select it from your computer.
The tool attempts to rebuild it
The file is reopened with a more lenient analysis and its internal structure is rewritten, to try to fix common errors.
Download the repaired PDF
If the repair is successful, you download a new, working file. Keep in mind that not every type of damage can be fixed from the browser alone.
Why repair PDFs on PDFDocks?
Corrupted or damaged PDFs won't open—they may be incomplete, incorrectly encoded, or structurally broken. Repairing restores functionality so documents are readable again. PDFDocks repairs PDFs server-side using robust reconstruction algorithms, keeping files secure throughout.
What kinds of damage can be repaired?
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PDFDocks repairs structural corruption, encoding errors, and incomplete files. Severely damaged or partial downloads may not be recoverable.
Will repair change the PDF contents?
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No. Repair restores functionality while preserving all recoverable content.
How long does repair take?
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Usually a few seconds. Severely damaged files may take longer.
Is my PDF private?
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Your file is processed on our secure servers. We don't retain documents.
What if repair fails?
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Some PDFs are too damaged to repair. PDFDocks will tell you if recovery isn't possible.
Do I need to provide information?
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Just upload the corrupted PDF. PDFDocks handles repair automatically.