Security PDF
Redact PDF
Permanently black out every occurrence of a word or phrase — the hidden text is removed, not just covered.
Runs entirely in your browser — the file never leaves this device
100% FREE
No subscription required
COMPLETELY PRIVATE
Your files are never uploaded anywhere
CLIENT-SIDE PROCESSING
All conversions happen in your browser only
YOUR DATA IS YOURS
We process everything locally on your device
Drop your file here
or click to choose from your device
Select fileAbout Redact PDF
Permanently hide names, numbers or any phrase. Pages that contain the term are flattened, so the hidden text cannot be selected, copied or recovered.
How to use Redact PDF
- 1Click "Select file" or drag and drop a PDF into the box above.
- 2Set your text.
- 3Press "Run Redact PDF". The conversion runs on your own device, usually in a few seconds.
- 4Download a redacted PDF. Nothing is uploaded or stored on any server.
Tips for the best result
- Matching is case-insensitive.
- Redacted pages become images — other pages stay untouched.
Frequently asked questions
Is the redaction permanent?
Yes. The text under the black boxes is removed from the file, not just covered.
Is the Redact PDF tool free?
Yes. It is completely free, with no sign-up, no watermark and no daily limit.
Are my files uploaded to a server?
No. FlashFile processes your files entirely inside your browser, so they never leave your device.
Is there a file size limit?
There is no fixed limit. Files up to about 200 MB work on most computers; very large files depend on your device memory.
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