Answer My PDF files require Adobe Acrobat Reader version 6.0 and above. This message can sometimes appear if you are using an out-dated version of Adobe Acrobat Reader. We recommend checking you have the latest version (version 8) or downloading it free from http://www.adobe.com/products/acrobat/readstep2.html Please contact us if your question is not answered.
Q. I get a message saying ‘The viewer cannot decrypt the document’, why?