Protect PDF
Protect your document with an AES-256 password.
or drag & drop here
PDFUp to 100 MB per file · 250 MB totalKeep the password safely and share it separately from the PDF. We cannot recover it.
Three steps. Done.
Choose your file
Pick a file or drop it into the tool above.
Adjust your settings
Choose the options that work for your document.
Download your result
Your new file is ready to save. The original stays untouched.
Protect PDF
Encrypt a PDF with an AES-256 password before sharing it.
How to get the result you need
- Choose a password of at least eight characters and save it securely; recipients need it to open the document.
- Share the password separately and verify that your new file opens correctly.
- Accepted file formats
- What you can download
- Options
- Document password · Confirm password
What to check before sharing
Keep the password safely and share it separately from the PDF. We cannot recover it.
Each file can be up to 100 MB, with a 250 MB total. There are also limits on page counts and photo dimensions. Large files can take longer on a phone.
Good questions, simple answers
Do my files leave my device?+
No. Your files are processed in your browser and stay on your device. We do not upload or store your documents. The page only downloads the tools needed to make your changes.
Does this change my original file?+
No. Every tool creates a new file. Keep the original safely on your device and download the result when you are happy with it.
Good to know+
Keep the password safely and share it separately from the PDF. We cannot recover it.
