Password protect PDF
Use Password protect PDF directly in this browser and download the finished file when processing is complete.
- No registration
- No install
- Browser processing
How to use
- Select the file you want to process.
- Adjust the available settings for this tool.
- Run the tool and download the generated file.
Supported files and notes
- Supported formats: PDF
- Limit: up to 1 file(s), 100MB per file.
- Processing is designed for browser-only use when the file type is supported.
Before you use it
- Large or complex files can take longer, especially on mobile devices.
- Keep a backup of important files before processing.
- Results can vary depending on how the original file was created.
Related tools
Password protect PDF FAQ
Is Password protect PDF free to use?
Yes. You can use this tool without registration. If ads are shown, they are kept separate from upload, processing, and download controls.
Are my files uploaded?
No. This tool is designed to process files in your browser for supported formats. The selected files are not uploaded to a server.