When this tool is useful
Adding password-at-open protection before storing or sharing a document through another channel.
How local processing works
AES-256 encryption is written in the browser. The opening password also has owner access, and document permissions remain enabled so the same password can remove protection later.
How to use it
- Choose the source files.
- Review the available settings and page order.
- Process locally, inspect the result, and download it.
Important limitations
This controls opening only; it is not DRM and cannot prevent screenshots, copying, editing, or redistribution after an authorized reader opens the file.
Private by design
Your files stay in this browser. The tool does not upload the source or output to our servers.
Questions and answers
Does this tool upload my files?
No. Processing happens in your browser; closing the page clears the working session.
Will the output always match the source exactly?
This controls opening only; it is not DRM and cannot prevent screenshots, copying, editing, or redistribution after an authorized reader opens the file.