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Protect PDF
Add a password to protect your PDF.
Format Supported: PDF
अधिकतम आकार: 500MB
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फ़ाइल अपलोड करने के लिए माउस छोड़ें
How to encrypt PDF with password online for free?
1. Click the Upload Files button, or drop a file into the drop zone;
2. Enter the password and click to encrypt;
3. Download the encrypted file or convert it to a digital page-turning book.

FlipHTML5 Online PDF Protector: Free, Secure, Easy Encryption

Free Forever!
No ads! No watermarks! Available on smartphones, tablets, and computers.
Protect in Batch
Upload and encrypt PDF files in batches. Add a password to multiple PDF files with one single click.​
Simplicity Redefined
Just drop, add a password, and done! Effortlessly encrypt your PDF in a snap.
Data Security
Our PDF Protector only stores your uploaded file on a secure server for a short time. Your files will be permanently deleted after 6 hours.
Beyond Encryption
Explore further possibilities after adding a password to protect your PDF. Do more easily with our array of additional tools.
Protect Big PDFs
Protect as many PDFs as you want, as long as the total size stays under 500 MB. Or you can upload one file under 500 MB.