Unable to remove fonts from a PDF file
I have a PDF file whose size is much bigger than I would expect.
Using Acrobat Pro option 'Save As Other->Optimized PDF' and then Audit Space Usage I can see that the problem is that there are embedded fonts

However when I go to the Fonts page it shows no embedded fonts

Is there anyway to reduce this file size?
I have no need for any embedded fonts. If I am using one 'by mistake' I am happy to change the font to one that does not need to be embedded if someone can tell me how to do that.
The fonts listed for the document are


