Protect PDF
Add password protection to a PDF.
Protect PDF
Add password protection to a PDF.
Result
Your processed file appears here, ready to download.
No output yet
How to use Protect PDF
Upload file
Select or drop your file into the Protect PDF panel.
Choose settings
Adjust the available options such as page ranges, text, quality, or passwords.
Process
Run the tool and wait a moment while everything is processed in your browser.
Download
Rename the output if you like, then download your finished file.
Browse tools
All PDF tools stay visible under the ALL view by default.
Choose a tool
Select the PDF operation you want to perform.
Upload file
Upload a PDF, image set, Office file, or use the input supported by the selected tool.
Set options
Adjust page ranges, crop margins, passwords, form values, watermark settings, or conversion options.
Process
Run the selected PDF operation.
Download
Download the finished file from the result panel.
Upload file
01Select or drop your file into the Protect PDF panel.
Choose settings
02Adjust the available options such as page ranges, text, quality, or passwords.
Process
03Run the tool and wait a moment while everything is processed in your browser.
Download
04Rename the output if you like, then download your finished file.
FAQ
Frequently asked questions
Upload your PDF, set a strong password, and apply. Anyone opening the file will need the password to view it.
Use a long password mixing letters, numbers, and symbols. Avoid birthdays or simple words — the protection is only as strong as the password.
Yes. Use the Unlock PDF tool with the correct password to remove protection.
Yes. Password protection uses standard PDF encryption, so Adobe Reader, browsers, and mobile apps will all ask for the password.
No. Encryption happens locally in your browser — your document and password never leave your device.