Password locker
Protect a PDF or keep any original file inside an encrypted ZIP.
- 1Choose files
- 2Adjust your options
- 3Preview & save
Free to use. No added watermarks.
Choose a file to protect
PDF, Word, Excel, images or any other file. Your original stays unchanged.
One file · up to 25 MB · PDFs up to 300 pages · ZIP extraction up to 50 MB / 100 entries
Choose your settings to preview the result.
Your copy is ready
Download copyProcessed on your device. No file upload.
How to use Password locker
- Choose a file and select protected PDF or encrypted ZIP.
- Review the preview and enter a strong password twice.
- Download your protected copy and keep the password somewhere safe.
When to use Password locker
Add a password before sharing a document, photo or workbook. Choose a protected PDF for easy viewing, or encrypted ZIP to preserve the exact original file. Review converted pages before downloading and share the password separately.
Supported formats and limits
Any file → AES-256 ZIP / supported files → PDF. ZIP protects contents, not filenames. Office files are protected inside a ZIP, not with native Word or Excel encryption. Office-to-PDF exports text or one worksheet only; original layout and images are not preserved. Forgotten passwords cannot be recovered.
About this tool
Should I choose protected PDF or encrypted ZIP?
Protected PDF is useful when the recipient needs to read a document. Encrypted ZIP keeps the exact original file inside the archive, including a Word document or spreadsheet. ZIP filenames remain visible. Share the password separately from the protected copy.
Can you recover a forgotten password?
No. Passwords stay in your tab and there is no recovery service. Keep a separate working original and store your passphrase safely before sharing.
What should I inspect before sharing the password locker output?
ZIP protects contents, not filenames. Office files are protected inside a ZIP, not with native Word or Excel encryption. Office-to-PDF exports text or one worksheet only; original layout and images are not preserved. Forgotten passwords cannot be recovered. Download the output and open it in the receiving application. A browser download request does not confirm that saving finished.