Information message

Secure PDF Redactor

Permanently mask sensitive data. Generates a flattened, unrecoverable PDF.

Drag & drop PDF document here

or click to browse — .pdf format only

Reading PDF Document...

Step 2: Mask Personal Data

Draw black boxes over names, addresses, or account numbers to redact them.

1 / 1

Apply drawn mask to all pages

Secure Academic Studio

Home Imprint Terms Privacy Cookie Policy

Error

An error occurred.

Pre-flight Check

Document length: -

Maximum cost: -

Available balance: -

The required credits are available. Note: credits are only deducted upon successful generation!

Insufficient credits to process the entire document. Please enter a valid code or get a free one on the Pricing page.

Get Credits

Anonymous Feedback

We do not collect personal data. Your message is sent exclusively to our own server hosted by Hetzner Online GmbH, which is 100% compliant with EU GDPR requirements. If you do not provide an email address or other personal data, you remain completely anonymous.

Your Message (max 2000 chars)

Optional: Email address (if you want a reply)

Thank you for your feedback!

Privacy Proof Architecture

Confirmation

Are you sure you have redacted all sensitive data?

Credit Pack / Credits

Enter your Credit Pack Code to unlock premium processing. No account required.

Further Credit Options

Processing Document

Checking Credit Balance...

Rasterizing PDF Pages...

Assembling Secure PDF...

Exporting File...