Repair PDF

Upload a PDF that fails to open, renders blank pages, shows garbled text, or reports a structural error in your viewer. The repair pipeline parses the raw file bytes, reconstructs the cross-reference table if it is broken or missing, recovers page objects from the content stream, and writes a conforming PDF.

Common problems this addresses

• Truncated files caused by an interrupted download or incomplete email attachment.
• Broken xref tables from a mid-write system crash.
• Missing or mismatched object references that produce blank pages.
• Linearization errors in web-optimised PDFs with a corrupted hint table.

What repair can’t fix

Encrypted files with an unknown password cannot be repaired — the content is unreadable without the key. Scans that were never given a text layer are not affected by repair; use OCR PDF to make those searchable. And if the file was simply overwritten with zeros or the storage medium failed completely, recovery is usually impossible; the repair tool works on partially-intact PDFs, not deleted or overwritten files.