Password Protect PDF
Protect PDF files with a password to keep sensitive data confidential
How to Protect PDF Online for Free
1.Click on the 'Choose File' button and select or drag and drop the PDF file you want to protect.
2.Fill in the password and confirm password fields and click on the Protect PDF button.
3.Click ‘Download’ to download your Protected PDF.
FEATURES
Fast
Thanks to its powerful processing capabilities, this tool is able to protect PDF file in a shorter amount of time.
Unlimited
You can use this Protect PDF tool online for free and with no limits on the number of times you can use it to protect PDF files.
Reliable PDF protection
Encrypt your PDF with a password to prevent unauthorized access to the file content and maintain its confidentiality.
Security guaranteed
Working with Protect PDF is absolutely secure. We do not save passwords and files are deleted permanently after one hour.
User Friendly
This tool is designed for all users, advanced knowledge is not required. So, It's easy to protect PDF files.
Cross-platform
You can access or use the Protect PDF Tool online on the Internet using any browser from any operating system.
Lock Your PDFs Easily with PDFSize.com’s Free Protection Tool
Got a PDF you don’t want just anyone messing with? With PDFSize.com, you can protect your PDF files for free in no time. Add a password to keep your docs safe—perfect for personal stuff, work files, or anything sensitive you’re sharing. No complicated setup or paid apps needed. Just upload your file, set a password, and boom—it’s locked down tight, ready for you to share without worrying about prying eyes.
Using PDFSize.com to secure your PDF is a total breeze. Hit up the site, pick the ‘Protect PDF’ tool, and drop your file in. Type in a password you’ll remember, click to lock it, and you’re done—your PDF’s safe in seconds. It’s great for keeping contracts, reports, or private notes under wraps, especially if you’re emailing them or storing them online. Works on your phone, laptop, whatever—no sign-up nonsense, just quick and easy protection when you need it.
Why pick PDFSize.com to protect your PDFs? It’s fast, free, and doesn’t mess around—thousands of people use it to keep their files secure. Whether you’re safeguarding a big work document or just want some peace of mind, this tool’s got you covered. No one’s getting in without that password, so you can relax and share away. Give it a try today and see how simple it is to lock up your PDFs like a pro!