Before sharing a contract, invoice or official document, you need to hide the personal data inside it (ID numbers, IBAN, phone, address) — often a legal requirement under GDPR/KVKK. But beware: drawing a black box over text is NOT real hiding.
Why a "black box" isn't safe
In most tools you "hide" sensitive data by drawing a black rectangle over it. But the original text stays inside the document: anyone who opens the PDF in a text editor, removes the box, or copies the text can read the data back. That's a leak and a compliance risk.
Real redaction removes the data from the document's CONTENT. Our redaction tool uses PyMuPDF to delete the data entirely — it doesn't cover it. In the redacted spot, searching, copying or recovery is impossible.
How it works — step by step
- Upload the PDF: Add your document to the redaction tool.
- Sensitive fields get found: Patterns like ID, IBAN, phone and email are detected on your device; context-based data like names and addresses is detected with AI.
- Remove permanently: The fields you confirm are truly deleted from the document's content. Download the cleaned PDF.
Redact Sensitive Data — Permanently remove personal data and share the document safely.
When do you need it?
- Before sharing a contract or invoice with a third party.
- In official applications, tenders or court files.
- For documents published as samples/templates.
The part of the personal data detected on your device (ID, IBAN, phone, email) is not sent anywhere as it's removed; only context-based detection (name/address) sends text to the AI.