About this tool
Add powerful password protection to your PDF files instantly with military-grade encryption. Perfect for students who need to secure personal documents, protect sensitive assignments, lock private notes, safeguard financial records, or control access to confidential materials. Fast encryption works in seconds with just a simple password setup - no complicated security settings or technical knowledge required. Great for protecting grade reports, securing scholarship applications, locking personal statements, protecting research data, securing legal documents, or ensuring privacy when sharing files. Once encrypted, only people with the correct password can open and view the document. Strong AES encryption ensures your content stays completely private and secure. Works offline with all processing happening securely on your device. Set custom passwords of any length - longer passwords provide even stronger security. Perfect for sharing documents securely via email or file sharing while controlling who can access them.
Frequently Asked Questions
How quickly can I add a password?
Instant! Just enter your password and done. Your PDF is secured in seconds with strong encryption.
How secure is the encryption?
Very secure! Uses industry-standard AES encryption, the same level of security used by banks and governments. Your documents are completely protected.
Can I remove the password later?
Yes! If you have the password, you can unlock and remove protection anytime. Just use the unlock PDF feature.
Does it work offline?
Absolutely! All encryption happens on your device. No internet needed, complete privacy guaranteed.