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Repair PDF - Fix Corrupted & Damaged PDF Files Online

Advanced PDF repair tool to fix corrupted, damaged, or unreadable PDF files. Recover data from broken PDFs with multiple repair methods. Free online PDF recovery.

Secure & Private • Fast Processing

Drop your file here

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.pdf

Repair Strength

Choose the repair intensity based on the severity of PDF corruption.

Upload a corrupted or damaged PDF file. Our tool will analyze and attempt to fix structural issues.

How to Repair PDF - Fix Corrupted & Damaged PDF Files Online

1. Upload

Select or drag & drop your file into the upload area.

2. Configure

Adjust settings if needed, then click the process button.

3. Download

Download your processed file. It's that simple!

Advanced PDF Repair Technology

Our multi-engine repair system uses PyMuPDF for deep repairs, PyPDF2 for structural fixes, and pikepdf for advanced recovery. This combination ensures the highest success rate for PDF recovery.

How to Repair a Corrupted PDF

Simply upload your damaged PDF, select a repair strength, and let our tool analyze and fix the file. The process typically takes 10-30 seconds depending on file size and corruption level.

Types of PDF Corruption We Fix

Broken headers, corrupted XREF tables, missing EOF markers, damaged page trees, invalid object streams, broken content streams, and metadata corruption.

Why Use Our PDF Repair Tool?

Multi-Method Repair

Uses multiple repair engines (PyMuPDF, PyPDF2, pikepdf) to maximize recovery success.

Deep Analysis

Scans file structure, detects corruption, and identifies recoverable content.

Structure Rebuild

Reconstructs PDF header, XREF table, page tree, and content streams.

Data Recovery

Salvages text, images, fonts, and metadata from unreadable files.

Repair Strength

Choose from Quick Fix, Standard, or Deep Repair based on damage severity.

Safe & Secure

Original file remains unchanged. Repaired copy is created separately.

Frequently Asked Questions

What causes PDF corruption?

Common causes include incomplete downloads, hard drive errors, power failures during save, software bugs, virus infections, or transfer errors.

Can all PDFs be repaired?

We can fix most structural corruption. If the actual content data is zeroed out or physically damaged beyond recovery, repair may not be possible.

Will I lose any content?

Our repair process attempts to preserve all recoverable content. In most cases, no data is lost. Severely corrupted sections may be removed if unrecoverable.

How does the repair process work?

We analyze the PDF structure, fix the header and cross-reference table, rebuild the page tree, recover content streams, and create a clean document with all salvageable data.

What is the success rate?

We successfully repair approximately 85-90% of corrupted PDFs. Success depends on the type and severity of corruption.

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