Legal wants staff performance records for a consultancy review, but we must redact personal identifiers before sharing…
Open the PDF you want to redact in Adobe Acrobat Pro.
Go to Tools and select Redact.
Click Find and Remove Text.
Enter the word, phrase, or pattern you want to search for in the search box.
Choose the location to search (e.g., current document or all PDFs in a folder), then click Search.
Review the search results and check all instances you want to redact, or use Select All to mark every occurrence.
Click Mark for Redaction to mark the selected instances.
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.
Save the redacted PDF with a new file name.
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.
Redacting content with the proper tool permanently removes the selected text or image data from the PDF. Drawing a black rectangle only covers the content visually; the original text or image data remains underneath and can still be copied, searched, or revealed. True redaction makes the information unrecoverable.
Sanitizing a PDF after redaction is important because redaction only removes visible content. Hidden data, such as metadata, comments, layers, or revision history, can still contain sensitive information. Sanitizing removes all this hidden data, ensuring no private details are accidentally left in the document.
For redacting many instances of specific patterns like Social Security Numbers or account numbers, you should use Acrobat's pattern-based auto-redaction feature. This tool can automatically find and mark all occurrences of these patterns throughout your document. After the automatic redaction, it's a good practice to have another person review a random sample to ensure accuracy and catch any missed items.