Repair PDF
Fix corrupted or damaged PDF files
What is PDF repair?
PDF repair attempts to recover content from a damaged, corrupted, or partially complete PDF file that fails to open in standard PDF readers. Corruption can occur from incomplete downloads, storage failures, or transfer errors.
The repair process rebuilds the PDF's internal structure — cross-reference tables, object streams, and metadata — extracting as much readable content as possible. Results depend on the extent and type of corruption.
How to use Repair PDF
Upload your damaged PDF
Click the upload area or drag and drop the PDF file that fails to open or displays errors.
Click Repair PDF
The tool attempts to rebuild the PDF's internal structure and recover its content.
Review the result
Download and open the repaired file to check how much content was successfully recovered.
Download the repaired PDF
Click Download to save the recovered PDF.
Frequently asked questions
Will the repaired PDF contain all my original content?
Not necessarily. Results depend on the type and extent of corruption. Minor corruption from truncated downloads often recovers fully. Severe physical media failures may only recover partial content.
What causes PDF corruption?
Common causes include interrupted downloads, storage device failures, file system errors, email transmission corruption, and software crashes during save. Partially downloaded PDFs are the most common case.
My PDF opens but shows errors — can it still be repaired?
Yes. A PDF that opens but displays rendering errors or missing pages may be partially corrupted. The repair tool can often fix structural issues even in partially functional files.
Is there a file size limit for PDF repair?
The file size limit is 50 MB. Severely corrupted files with many errors may take longer to process.