Repair PDF Online

Recover and restore corrupted, unreadable, or damaged PDF files by scanning byte streams, rebuilding xref index tables, and salvaging valid content.

Choose PDF file or drop it here

Supported: .pdf • Max file size: 50MB

Encrypted client-side processing • Files stay private

100% Privacy & Security Guaranteed

Client-Side Encryption

Your files are processed temporarily in your browser memory and never stored on third-party servers. Sensitive data, passwords, and extracted document contents are never logged.

How to Repair PDF Online

Follow these 3 simple steps to process your document in seconds

Upload Damaged PDF

Upload the unreadable, broken, or damaged PDF document.

Scan & Reconstruct

Our diagnostic parser scans byte streams to recover intact page objects and rebuild the file catalog.

Download Repaired PDF

Download the salvaged, valid PDF document and verify your restored pages.

Why Use SumKaro Repair PDF?

Built for speed, uncompromising privacy, and enterprise-grade reliability

Byte Stream Recovery

Bypasses corrupted xref tables and trailers to reconstruct readable page streams.

Object Tree Salvaging

Extracts all undamaged text, vector art, and images even if header structures are broken.

Transparent Diagnostic Report

Clear feedback on what percentage of objects and pages were successfully salvaged.

Frequently Asked Questions

Common questions about repair pdf

Can every damaged PDF file be repaired?

While our engine successfully recovers most structurally damaged PDFs and broken xref tables, files with severely overwritten or completely zeroed byte data may have unrecoverable sections.