Repair PDF

Explore the repair workflow for damaged PDFs.

STEP-BY-STEP GUIDE

How do you repair a damaged PDF?

Recovery depends on the damage and the content that remains.

  1. Keep the original

    Use a copy and try obtaining the source again.

  2. Identify the problem

    Distinguish file damage from reader or access problems.

  3. Attempt recovery

    Check the copy's structure using a capable tool.

  4. Verify the content

    Inspect every page and important content in the recovered file.

This guide explains the general workflow in an application that supports the operation. This version offers file selection and type/size checks; it does not generate processed output.

Frequently asked questions

Answers about the workflow, file quality, and situations you may encounter.

Can every damaged PDF definitely be repaired?

No. Some structural problems are recoverable, but success is not guaranteed.

Is a PDF that will not open necessarily damaged?

No. Browser, reader or application-installation problems can also prevent opening.

Will repair recreate missing text?

Do not assume missing content will return; recreating the PDF from its source may be necessary.

Does passing a structural check guarantee correct content?

No. Content problems can remain in a syntactically valid document.

Does Acrobat's repair-installation option repair the PDF?

It repairs the application installation, which differs from repairing document content.

Can I complete the operation and download a file on this page?

This version supports file selection and checks of file type, size, and count. Processing is not connected, so it does not convert, edit, or generate downloads. The guide describes a workflow in an application that supports the operation.

Which file types and sizes can I select?

This tool accepts PDF file extensions. You can select up to 20 files, with a 25 MB per-file limit and 100 MB total. Checking an extension does not verify that the file contents are valid or undamaged.

Are my selected files sent to a server?

In this version, file contents are not read or uploaded. Selections stay in the tab’s memory and are cleared on refresh. File names, extensions, and sizes are used only to display and check your selection.