We need a redacted public version of a safety report that protects trade secrets yet stays credible for regulators and…
Open the PDF you want to redact in Adobe Acrobat Pro.
Go to the Tools panel and select Redact a PDF.
Best practiceIf you do not see 'Redact a PDF,' click 'View more' to expand the list of tools.
Use your cursor to select the text or images you want to redact.
CautionRedacted content is permanently removed after applying redactions; double-check your selections.
Click Apply to permanently remove the selected content.
NoteYou may be prompted to save a copy of the document after applying redactions.
Save the redacted PDF with a new file name.
Best practiceSaving a new copy preserves your original unredacted document.
You can preview all redaction marks before applying them to ensure nothing is missed.
This runs in the Acrobat app - there is no separate API for this task.
Drawing a black rectangle only covers the text visually; the text itself remains in the document and can be copied or searched. The Redact tool, however, permanently removes the selected content from the document. This means the text is truly gone and cannot be recovered, making it safe for public release. Always use the Redact tool for security, not just a drawing tool.
Sanitizing a PDF after redaction is important because redaction only removes visible content. Hidden data, like metadata, comments, or previous versions, might still contain sensitive information. Sanitizing strips away all this hidden data, ensuring that no confidential details are accidentally left in the document. This makes your PDF truly secure for public sharing.
For large amounts of personal information like Social Security Numbers or account numbers, Acrobat Pro has an automatic redaction feature based on patterns. You can use this to find and mark all instances of these numbers quickly. After the automatic redaction, it's a good practice to have another person review a random selection of the redacted areas to ensure everything was correctly removed. This helps catch any missed items and ensures accuracy.
Metadata is information 'about' the PDF document itself, not the content you see. It can include the author's name, creation date, editing history, or even hidden text. For redaction, metadata matters because even if you remove visible sensitive text, the metadata might still hold clues or direct sensitive information. Sanitizing the PDF after redaction removes this metadata, ensuring complete privacy and security.