I have two workstations both running Acrobat 8.1.2 Pro, both have the font Arial installed and working just fine in other applications.
I have a pdf file from a customer which opens fine in one workstation, the other workstation gives the following error and shows all text in the pdf as "dots".
Cannot find or create the font 'Arial'. Some characters may not display or print correctly.
I've Googled "Cannot find or create the font" and find this problem has been reported in Adobe forums and elsewhere in several previous versions of Adobe Acrobat. Nowhere is the problem resolved... most responses suggest the font Arial is not installed which is not helpful as the Arial font is indeed working fine in other applications.
I am having the same problem Sam is. I only see dots in my document and received the same error mesage only I was using a different font. The font is installed on y system and usable in other documents.
I tried to change the font (dots) to a different font but received an error messge stating the change could not be done because the "chosen font and the font encodings in the document differ and could not be resolved"