Information:
FyTek's PDF Secure allows you to encrypt (using standard 40-bit or 128-bit supported by Acrobat Reader 5.0 and up) existing PDFs. You may also supply password protection and lock down interactive fields. Any combination of the following items may be set with password pretection:
Prevent printing of the document
Prevent copying of text/graphics
Prevent changes to the document
Prevent changes to form fields and annotations
In addition, you may also set the document title, subject, author, creator and producer. See the chart below to download a fully functional demo for Windows or Linux.