ap PDF Encrypt
PDF Encrypt allows you to encrypt (using standard 40-bit or 128-bit supported by Acrobat Reader 5.0 and up) existing PDFs, set permissions, add user and owner password.
R-Crypto Disk Security
A reliable solution to create encrypted virtual disks and protect confidential information and personal data on a desktop, notebook, or a removable data storage device against unauthorized access. A free fully functional 30-day trial version.
Cryptainer LE Encryption Software
Encrypt any file or folder on any Windows PC. Any Media, any type of data. Cryptainer LE Free Encryption Software. Password protect any file or folder with strong Encryption. Send secure e-mail. Protects data on USB Drives, CDs and HDDs. Freeware.
Folder Encryption Software
Avoid identity theft and security breaches by password protecting folders containing important personal or work information on your computer. Download and install Folder Encryption Software for Windows.