Protect a PDF with a password. Locally.
Choose a PDF, review it, set a password and create a new AES-256 protected copy without uploading the document to Kinumia.
Minimum 8 characters; we recommend 12 or more. Maximum 127 UTF-8 bytes to avoid silent truncation.
The password no longer remains in the fields. Kinumia cannot recover it.
Frequently asked questions
Is my PDF or password uploaded?
No. The document and password are handled inside this browser tab. Kinumia does not use a document-upload endpoint for this tool.
What encryption does Kinumia use?
This tool creates a PDF Standard Security Handler using AES-256, revision 6 (V=5, R=6, AESV3).
Does this replace my original PDF?
No. Kinumia creates a separate protected copy and leaves your original unchanged.
Can Kinumia recover my password?
No. The password is not stored or sent to Kinumia, so keep it somewhere safe.
Work with documents often?
Kinumia Scan brings scanning, OCR, organization, signing and private PDF tools together on your phone.