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Black out every occurrence of a word or phrase in the PDF text layer. Use this free online tool without creating an account. Your files are processed on your device for privacy.
Free redact pdf with no account
Private — files stay on your device
Works in Chrome, Safari, Firefox, and Edge
Fast in-browser processing
Yes. Redact PDF on Knowvora is free — no signup, watermark on the tool, or daily limit for normal personal use. Processing happens in your browser.
No. Files are processed locally in your browser and are not uploaded to Knowvora servers. Close the tab when you are done for extra peace of mind.
This tool accepts PDF files. Use the file picker or drag and drop to start.
Yes. It works in modern mobile browsers (Chrome, Safari, Firefox, Edge). Large files may take longer on slower devices.
Unlock PDF
Remove an open password from a PDF you can already open.
Protect PDF
Encrypt a PDF with a password before sharing.
Sign PDF
Place a signature image on the last page of your PDF.
Compare PDF
Compare text extracted from two PDFs and download a diff report.
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