Repair PDF

About PDF Repair Tool

This tool repairs corrupted, damaged, or unreadable PDF files. It analyzes your PDF for structural issues, fixes cross-references, rebuilds the document structure, and attempts to recover all pages. All processing happens securely in your browser.

What types of PDF damage can this tool fix?

This tool can repair various PDF issues including corrupted headers, invalid cross-reference tables, missing EOF markers, damaged page content, and broken internal links. It works by rebuilding the PDF structure from scratch.

How does the PDF repair process work?

The repair tool first analyzes your PDF to detect issues. Then it attempts multiple repair strategies: rebuilding the document structure, fixing cross-references, recovering pages one by one, and removing corrupted objects while preserving valid content.

What if my PDF cannot be fully repaired?

Some severely corrupted PDFs may only be partially repairable. The tool will recover as many pages as possible and notify you of any pages that couldn't be restored. You can still download the partially repaired version.

Is there a file size limit?

The maximum file size is 100MB. This larger limit accommodates corrupted files that may have bloated in size. For very large files, the repair process may take a bit longer.

Will the repair process preserve my PDF content?

The tool prioritizes content preservation. Text, images, and page layouts are maintained whenever possible. However, severely corrupted sections may need to be removed to create a valid PDF.

Can this tool fix password-protected PDFs?

The tool can attempt to repair encrypted PDFs, but you may need to provide the password for full content recovery. For PDFs with unknown passwords, consider using the Unlock PDF tool first.

Is my PDF file secure?

Absolutely! All PDF repair processing happens entirely in your browser. Your files are never uploaded to any server, ensuring complete privacy and security of your documents.

What should I do if repair fails?

If automatic repair fails, try uploading the PDF again or use a backup copy if available. Some PDFs may be too severely damaged for browser-based repair and may require specialized desktop software.