How to upload a different .ttf font type


We are creating content for people with reading difficulties & Dyslexia and we need to be able to use a completely different font. I would like to know how I would be able to upload a .ttf file which we can use other than AweSome when using text within H5P? Will this be possible?

I had a look at the technical docs and it only makes reference to changing the CSS files so not sure how to go about this in both WordPress as well as Moodle?

Thanks in advance for any assistance.