Redact PDF Online
Permanently remove sensitive information from your PDF documents with military-grade redaction. This free online tool processes everything locally in your browser — your documents never upload to any server, ensuring complete confidentiality for classified, personal, or proprietary information. Draw redaction boxes directly over text you want to hide, then confirm each redaction to permanently destroy the underlying content. Unlike basic black boxes that can be removed, confirmed redactions are rasterized and merged into the document structure — the original text cannot be recovered, extracted, or copied from the exported file. Perfect for redacting Social Security numbers, legal names, financial information, medical records, or any sensitive data before sharing documents publicly. Choose from multiple redaction colors including black, dark blue, and dark grey. All pending redactions can be adjusted before final confirmation. No registration, no file size limits, no watermarks. Your files never leave your browser.
Frequently Asked Questions
- Is my document uploaded to a server?
- No. All redaction processing is done locally in your browser. Your files never leave your device.
- Can the redacted text be recovered?
- In this tool, confirmed redactions are rasterized (flattened) in the exported file, and the underlying text is destroyed so it cannot be extracted or copied. Keep a backup of the original file.
- Can I change the color of the redaction?
- Yes. You can choose from black, dark blue, or dark grey for your redaction boxes.
- Is there a file size limit?
- There is no strict limit, but very large PDFs might slow down your browser since all processing is local.