A-PDF Password Security is a desktop program utility that allows you to change your password security Acrobat PDF files that already exist.
The main A-PDF Password Security are:
►Protect Your PDF documents from unauthorized access with standard password security
>40-bit RC4 encryption, which is supported by Adobe Acrobat 3.0 or above.
>RC4 128-bit encryption, which is supported by Adobe Acrobat
►Reader 5.0 or above
►Password for swimming pools
►Restrictions on changes to a PDF file
►Batch convert PDF files properties
►Decrypt a PDF file
►Add time expiry Data and PDF files
►Working with hot directory


Ok, please download the link below


A-PDF Password Security V3.3.2