Works great for us when students encode documents differently. Hope this helps you.
Re: Ang: Annotating PDF - Ghostscript can't convert Adobe CID Fonts?
by Yogesh Nahar -
Number of replies: 0
I came across this issue on a client's LMS. Easiest way to get around this is to print the PDF using the foxit pdf plugin and it generates a PDF without the encoding (as it generates images within the PDF). That then displays correctly in the annotate pdf window in Moodle.