Right now we support the more than 700 fonts included in the Google Fonts Library.
Unfortunately due to legal licensing issues and technical barriers beyond our control, you aren’t able to upload your own fonts to Proposify.
The challenge is that the fonts need to be of a certain file format to work in the browser, and it needs to perfectly mirror what's in the browser when generating a PDF. There are also legal issues if we were to distribute other people's fonts.
We'd like to integrate with Typekit, but currently it doesn't have a plan that allows us to host and distribute the fonts themselves which is necessary for generating PDFs. We'll keep you posted if that changes.
If you're looking to match a font that you use with some suggestions of similar looking Google Fonts you can do a Google search or write in to us and we'll look it up for you!