Repair PDF files
Recover data and rebuild malformed or corrupted PDF files so they open reliably.
or drop PDF here
100% In-Browser & Zero-Upload Privacy
Instant High-Performance Processing
Max 80 MB • Free Forever
How to Repair PDF Online for Free
Follow these quick, easy steps to process your files securely inside your web browser.
Step 1
Upload Damaged PDF
Select the file that errors out in other PDF readers.
Step 2
Scan Structure
Our engine parses raw byte sequences to locate surviving page markers.
Step 3
Rebuild Document
Missing tables are reconstructed according to ISO 32000 specifications.
Step 4
Download Repaired PDF
Save your recovered, standardized PDF file.
Why Use BizAiPro Repair PDF?
Reconstructs corrupted cross-reference tables (XREF)
Recovers dangling page objects and unreferenced streams
Generates a standardized PDF trailer and catalog dictionary
Clear transparent diagnostic reporting
Frequently Asked Questions about Repair PDF
Can every corrupted PDF be repaired?
No. If the actual page data bytes were permanently deleted or overwritten, recovery is impossible. Recoverable structural faults are repaired.
Are my files and documents uploaded to any server?
No. BizAiPro processes your documents 100% locally in your web browser using client-side WebAssembly and modern JavaScript. Your files never leave your computer.
