Edit presentation with embedded fonts?

[Will]

I have been asked to update a .pps file but when I open it in powerpoint I
cannot edit it because there are embedded fonts therefore read only. I
cannot copy and paste slides to a new presentation or edit any object on the
slides.
Is there a way round it?

 

[Echo S]

See the section labeled Warning at

Embedding fonts
http://www.rdpslides.com/pptfaq/FAQ00076.htm