We accept all popular presentation ===>format<=== like Microsoft PowerPoint, Apple Keynote, Google Docs, Prezi, Libre Office Impress, OpenOffice Impress and more. Just upload your file or share your Google Doc's link and we will find the right designer to do the job.
Yeah, I think it pays to just learn the two languages, and maybe write a test adapter that allows you to keep your (hopefully larger) code base in one language.