Hi guys,
I have a ready solution for you, I use the cutepdf program which you can download free from
http://www.cutepdf.com/It is simple and very effective. I have used it many times without a hiccup and it can be opened readily by recipients of files that you forward. It works through your printer program. When you have the document on the screen you select print and when the printer box comes up identifying your Canon or other printer, you tap on the drop down box on the side and select "Cutepdf". Hit print and instead of putting it through your printer, it will create a pdf and put it into your Documents file. You will find it in there labeled as the original subject"pdf".
Sean