What kinds of corruption can this fix?

Broken xref tables, stale object streams, missing EOF markers, and PDFs with permission-flag corruption. It re-saves the file from the parsed object graph.

Truncated files (missing bytes), missing page content, encrypted PDFs requiring a password, or PDFs that fail to parse at all. For those, use desktop tools like qpdf --repair or Adobe Acrobat.

No. Re-saving happens entirely in your browser via pdf-lib.

Will the repaired PDF look identical?

Page content is preserved, but some advanced features (embedded JavaScript, complex interactive elements) may be stripped during re-save.

PDF Repair

Re-save a broken PDF with a fresh xref table — local.

100% private — no uploads PDF ToolsFree & unlimited Read tutorial

How to use PDF Repair

Follow these steps — everything happens instantly in your browser.

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Step 1. Drop a corrupt PDF onto the zone.
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Step 2. Click “Repair PDF” — the file is re-saved with a fresh cross-reference table.
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Step 3. If the repair succeeds, the new PDF downloads; otherwise you'll see an honest error message.