Document Viewer Displaying Different Font on PPTX than PDF

[Seth3]

I am utilizing the document viewer for my Knowledge Base. I have a powerpoint that I have attached to a knowledge article, but when I open it in the document viewer, the font looks different than when I view it in the PowerPoint app. However, when I save the same PowerPoint as a PDF and upload to my knowledge article, the font looks correct. 

I have attached some screenshots to show the difference between the fonts. Any way I can get the document viewer to not change the font on the PowerPoint attachment? 

[Sandeep Rajput]

@Seth3 It is quite possible that the Document viewer doesn't support the font being used in the PPTX file. Also, document viewer might be handling a PDF and a PPTX in a different way hence you might be observing Font support in one case whereas it is missing in another case.