There are 2 main options for protecting your PDF file:
OPTION 1: Use Adobe Acrobat’s basic protection.
Adobe Acrobat allows you to set basic protection for your PDF document. This includes:
* allow/disable the ability to copy text of document
* allow/disable printing of file
* allow/disable changing document
* require password to open document (Yes their password protection was broken a few years back, but it’s still adequate protection and will keep out most people.)
Ideally, to use this option you should use Adobe Acrobat, however the high cost may put that out of reach of many. Fortunately, there are MANY, MANY inexpensive PDF creators that will allow you to also set some of these permissions.
Such as:
http://www.pdf995.com
http://www.pdffactory.com
http://www.deskpdf.com
There are also some standalone applications like: http://www.verypdf.com/encryptpdf/index.htm
Overall, option 1 is what I call “static protection”. Meaning, once you choose the security and then distribute the file, you cannot change the security for those files that are already distributed. For...