Redact a PDF Online
Permanently black out names, numbers and other sensitive text.
🔒 Your file is processed inside your browser. It is never uploaded or saved.
What is Redact PDF?
Covering text with a black box in an editor can leave the words underneath. This tool finds the words you list and blacks them out, then rebuilds every page as a picture so the hidden text is really gone from the file.
How to redact a PDF
- Upload the PDF.
- Type the words or numbers to black out, separated by commas.
- Press Start. Matches are found and covered on each page.
- Download the redacted file; the note tells you how many areas were hidden.
When Redact PDF is useful
Sharing documents publicly
Remove names and account numbers.
Legal and HR files
Hide personal details before circulation.
Support requests
Share screenshots of statements safely.
Tips for better results
Search finds text in text-based PDFs only; for scans, run OCR PDF first or redact by another method. Always review the output page by page. Because pages become pictures, text in the result is not selectable.
Good to know before you start
True redaction means the hidden information no longer exists in the file. Many quick methods only draw a black rectangle on top of text, leaving the words available to anyone who copies or searches the document. This tool finds your terms, draws black boxes at their positions and then saves every page as a picture, so the covered text cannot be recovered. Search is case-insensitive and matches parts of words, so use full names or complete numbers to avoid over-redacting. After downloading, open the result and scan each page, because a term that is split across lines or spelled differently may be missed. Share only the redacted copy.
Why use PDFToolkit
When you redact a PDF with PDFToolkit, the work stays on your own device. Your contracts, ID scans and invoices are processed in the browser and are never sent to a server.
- Private: no upload, nothing saved.
- Free: no sign-up, no daily limit and no watermark.
- Fast: no waiting for files to travel over the internet.
- Everywhere: Windows, Mac, Linux, Android and iPhone.
Frequently asked questions
Is the hidden text really removed?
Yes, pages are rebuilt as pictures, so the covered text does not remain.
Does it work on scans?
Only on PDFs with real text.
What if a word is not found?
The tool tells you so; check spelling.
Is the file uploaded?
No.