How do I use Redact in Acrobat to remove sensitive data from a PDF?

Open the PDF in Acrobat Pro and make a copy. Select 'Redact a PDF' from All tools. Drag over the text or images you want to remove. Click 'Apply' to finish the redaction. Turn on 'sanitize' to clean hidden data. Save the file and check for leftover sensitive words.

What is the difference between drawing a black box and using Redact in Acrobat?

Drawing a Black Box Using Redact. Only covers the text visually Removes the text completely Text can still be copied or searched Text is gone and cannot be recovered Not safe for sensitive data Safe for sharing and legal use

Remove Sensitive Data in Adobe Acrobat — How-to & AI prompts

AI prompts

2 ways to ask · copy any one

AExecute — “help me do it”Remove the private address from the scanned case file before class use: locate the pages…+

Remove the private address from the scanned case file before class use: locate the pages containing the individual's home address, apply permanent redaction to those lines, verify redaction cannot be reversed, save a copy named '[filename=Casefile_ClassSafe.pdf]', and keep an unredacted master offline.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

BImprove — “do it better”Make the redacted copy safe and defensible for teaching: search for every occurrence of the…+

Make the redacted copy safe and defensible for teaching: search for every occurrence of the address and related identifiers, apply coded redaction with a note explaining the redaction reason, run a text-search to confirm no hidden metadata contains the address, certify the redacted PDF, and store the unredacted original in restricted storage with its path noted in the redaction log.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid

1
Open the PDF you want to redact in Adobe Acrobat Pro.
2
Go to Tools and select Redact.
3
Click Find and Remove Text.
4
Enter the word, phrase, or pattern you want to search for in the search box.
5
Choose the location to search (e.g., current document or all PDFs in a folder), then click Search.
6
Review the search results and check all instances you want to redact, or use Select All to mark every occurrence.
7
Click Mark for Redaction to mark the selected instances.
8
Click Apply Redactions and confirm when prompted to permanently remove the marked content.
CautionRedactions are permanent and cannot be undone after saving.
Best practiceYou can customize the appearance of redaction marks before applying them by adjusting settings in the Redact tool.
Best practiceAlways double-check your search term and results to ensure all sensitive information is covered, especially with patterns like SSNs.
9
Save the redacted PDF with a new file name.

In the appWith the API

You can use the Find Text and Redact feature to quickly locate and mark all instances of sensitive words or patterns for redaction throughout your document.

This runs in the Acrobat app - there is no separate API for this task.

Glossary

words on this page

RedactTo hide or remove sensitive information from a document.ExampleYou redact the social security number before sharing the report with others.

SanitizeTo remove sensitive or private information from a document before sharing it.ExampleRemember to sanitize the document by redacting personal details before sharing it publicly.

MetadataMetadata is hidden information about a file, such as who created it or when it was changed.ExampleChecking a photo's metadata reveals the camera model and the exact date it was taken.

The real tasks

all 3, listed here

Remove an individual's private address from a scan before sharing the item with a class.

Redact sensitive landowner contact details from reports before distributing them to a broader public list.

Redact confidential pricing from a supplier's proposal before sharing it with internal teams.

FAQ

about this task

Open the PDF in Acrobat Pro and make a copy.
Select 'Redact a PDF' from All tools.
Drag over the text or images you want to remove.
Click 'Apply' to finish the redaction.
Turn on 'sanitize' to clean hidden data.
Save the file and check for leftover sensitive words.

Drawing a Black Box	Using Redact
Only covers the text visually	Removes the text completely
Text can still be copied or searched	Text is gone and cannot be recovered
Not safe for sensitive data	Safe for sharing and legal use

Sanitizing a PDF removes hidden information like metadata, comments, and old edits that could still contain sensitive details. Even after redacting visible text, private data can stay in the file's background. Sanitizing makes sure no one can find or recover any confidential information, so your document is truly safe for sharing.

If your PDF is a blurry scan, Acrobat may not recognize the text for redaction unless you run OCR (text recognition) first. If the text is not selectable, you can only redact by drawing over the image, but this does not remove the data underneath. Always check by trying to copy-paste or search the text after redaction.

If you forget to check for hidden data, private information might still be in the PDF as metadata, comments, or old edits. Someone could find and use this data, even if the visible text is gone. Always use the 'sanitize' feature and double-check by searching and copy-pasting, so you do not accidentally share confidential details.

Remove Sensitive Data

When to use it

AI prompts

How to do it

Glossary

The real tasks

Who does this

FAQ

Sources

Adobe help

Video

Other guides

When it fails