Optimize PDF tool

Repair PDF

Rebuild recoverable PDF structure and cross-reference information. No registration required.

Step 1 · Upload

Upload and prepare

Add your file

Drag & drop or select a file

75 MB per PDF

PDF recovery notes

Rebuild recoverable structure without promising missing content

  1. 1

    Preserve the damaged original

    Work from a copy so later recovery attempts remain possible.

  2. 2

    Rebuild recoverable PDF structure

    The repair engine rewrites readable objects and cross-reference information.

  3. 3

    Inspect the entire recovered file

    Verify page count, visible content, links, forms and attachments before relying on it.

PDF recovery notes

Rebuild recoverable structure without promising missing content

Rebuild recoverable PDF structure and cross-reference information so compatible readers can open a damaged file.

Uses structural repair rather than page screenshots

Keeps recoverable page content

Creates a new file for verification

Protect the damaged original and inspect every page

Source copy
Work from a duplicate of the damaged file.
Symptoms
Record whether opening, page navigation or extraction fails.
Verification
Check page count, text, images, forms and attachments after repair.

Documents with readable but malformed structure

  • Interrupted downloads
  • Malformed cross-reference tables
  • PDFs rejected by strict readers

Repair works on a temporary copy. Keep the damaged original separately until the recovered output has been fully inspected. Review the privacy policy.

Understand what structural rebuilding cannot restore

The file cannot be repaired

Its essential objects may be missing; obtain another source copy.

Pages are still absent

Repair cannot reconstruct content that is not present in the file.

One reader still fails

Test another current reader and inspect the repaired structure.

Repair PDF questions

Can repair recover deleted pages?

No. It can rebuild recoverable structure, not recreate missing content.

Does repair improve visual quality?

No. It targets PDF integrity, not image enhancement.

Should I overwrite the damaged file?

No. Preserve it until the repaired output is fully verified.

Can a repaired PDF still contain errors?

Yes. Always inspect the complete result.