Repair PDF
Fix corrupted, damaged, or unreadable PDF syntax and salvage data.
Select damaged PDF file
or drag and drop corrupted PDF here
Document Loaded
Ready to analyze and repair
Processed Successfully!
Your document is ready for download.
How to Repair PDF Online in 3 Steps
Salvage damaged, corrupted, or unreadable PDF documents that fail to open in standard PDF viewers. Reshape scans file byte streams, reconstructs damaged cross-reference tables (XREF), and rebuilds broken object catalogs local.
Upload Corrupted PDF
Select your damaged, broken, or unreadable PDF file. The diagnostic engine inspects file headers, trailers, and indirect object markers in local memory.
Diagnose & Rebuild Corrupt Structures
Our client-side recovery engine scans raw binary streams to locate unreferenced /Page objects, rebuilds corrupted XREF tables, and patches missing endobj delimiters.
Download Repaired PDF
Download your recovered, readable PDF document. Open smoothly in Adobe Acrobat, Chrome, Preview, and mobile readers without syntax error alerts.
Why Use Reshape's Client-Side PDF Engine?
Sending corrupt corporate files or damaged client documents to third-party recovery sites risks privacy violations and exorbitant diagnostic fees. Reshape repairs PDF syntax directly on your device.
100% Local Confidentiality
Total confidentiality. Repair damaged financial reports, legal filings, and scanned deeds with zero external data exposure.
High-Performance Document Engine
Reconstructs damaged cross-reference (XREF) tables and broken trailers using low-level binary stream parsing.
Zero Server Storage & GDPR
100% free and unlimited. Recover corrupted files immediately without paywalls, subscription requirements, or per-page charges.
Key Technical Specifications
Our recovery engine employs heuristic stream scanning to salvage orphan objects in malformed PDF files.
Rebuilds /XRef tables, patches malformed header offsets, and restores broken /Catalog dictionaries.
Recovers truncated downloads, improperly terminated scanner outputs, and transfer-corrupted files.
Runs locally across modern desktop and mobile browsers with modern hardware acceleration.
No external network logging; all recovery heuristics execute strictly in local browser memory.
Frequently Asked Questions
Learn about common causes of PDF corruption, XREF table rebuilding, and salvaging damaged files.
What types of PDF corruption can this tool repair? expand_more
The engine successfully fixes corrupted or missing cross-reference (XREF) tables, malformed file trailers, missing %%EOF markers, broken page catalogs, and truncated streams caused by interrupted downloads or faulty scanners.
Will my original document formatting and images be preserved? expand_more
Yes. The repair process focuses on restoring the structural syntax and object indexing of the PDF. Valid text streams, vector paths, and embedded images are preserved in their original fidelity.
What if my PDF file is completely blank or zero bytes? expand_more
If a file was corrupted to zero bytes (empty file) or the data was overwritten with null bytes, no underlying stream data exists to recover. However, if partial stream data remains, our engine will salvage readable pages.
Why do PDFs get corrupted in the first place? expand_more
PDFs commonly become corrupted due to interrupted network downloads, incomplete email attachments, improper scanner shutdowns, disk sector errors, or faulty third-party PDF creation software.
Is my damaged document uploaded to any external server? expand_more
No. Reshape performs all binary recovery and syntax repairs locally in device memory. Your confidential files never leave your computer.