Password locker Online
Protect a PDF or keep any original file inside an encrypted ZIP.
Free to use. No added watermarks.
- 1Choose files
- 2Make it yours
- 3Preview & save
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.
Make the result work for you
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.
Formats and practical limits
Protect an existing PDF without flattening its pages, or keep any original file unchanged inside an AES-256 ZIP. JPG, PNG, DOCX and Excel can also be converted to PDF before protection. Preview the converted document first.
About this tool
What can I do with 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.
Which inputs and outputs does this tool support?
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.
Does Password locker upload my data?
Selected file contents and generator inputs are processed locally in your browser. The website still loads its code and fonts from the host. Download results before closing the page.
How do I keep my result?
Review the preview, choose a download filename, and save the generated file. Text and table outputs also offer copy actions. The source file is unchanged.