I need to send a complaint file to an external safety committee this afternoon but must hide patient identifiers. The …
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.
Redaction only removes visible content. A PDF can contain hidden data like metadata (author, creation date), comments, or previous versions in its revision history. Sanitize removes all this hidden information, preventing accidental disclosure of sensitive details that might still be embedded in the file.
Yes, for large amounts of data like Social Security Numbers or account numbers, Acrobat Pro offers a pattern-based auto-redaction feature. This allows you to search for specific number patterns and redact them all at once. After auto-redaction, it's a good practice to have another person check a random sample to ensure accuracy and completeness.
| Method | Effect on Information | Security Level |
|---|---|---|
| Black Rectangle | Covers information, but it's still present underneath and can be copied. | Low (information is recoverable) |
| Redact a PDF Tool | Permanently removes the information, making it unreadable and unrecoverable. | High (information is truly gone) |
Redaction is a permanent action. Once you save a redacted document, the original sensitive information is gone forever. Working from a copy ensures that you always have the unredacted original document safe. This is important for record-keeping and in case you make a mistake.