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Black out text in a PDF

Black out names, numbers and sensitive details in a PDF before you share it. Free, private, runs in your browser.

100% private: this tool runs entirely in your browser. Your file never leaves your device — nothing is uploaded, nothing is stored.

Drop a PDF here or click to browse

Runs in your browser — your file is never uploaded.

Black out text in a PDF

Blacking out text in a PDF is how you remove sensitive information — names, account numbers, addresses, signatures — before a document goes to someone who should not see it. Draw a redaction box over each piece of information you want hidden and the tool covers it with a solid black mark on the finished PDF. This matters when you share a contract, a bank statement or a medical form and need to protect the parts that are not the recipient's business. Place boxes over every sensitive item on every page, then download the redacted copy while keeping your original intact. Doing this in your browser means the unredacted document is never uploaded to a server, which is exactly the right property for material sensitive enough to need redaction in the first place. Always review the result before sharing to confirm nothing was missed and the black boxes fully cover what they should.

Frequently asked questions

How do I black out a piece of text?
Draw a box over it. The tool covers that area with a solid black mark in the downloaded PDF.
Is the redacted information truly removed?
The area is covered in the exported file. Always review the result before sharing, and keep redactions to dedicated copies.

More ways to use Redact PDF