This is a reproduction of the Georgia Tech letterhead in Latex. It uses the new GT branding (per Oct 1, 2021) and replicates this document. I used the free typeface alternatives suggested by the styleguide.
Copy gt-letterhead.sty, template.tex, and assets/ to your working directory.
You will need sig.png or some other signature image if you want to use one.
Modify template.tex as appropriate and build with pdflatex.
I provide an argument to gt-letterhead.sty for using different CoC college and school header logos.
The default is the Georgia Tech logo (no school affiliation).
You can use others like this
% Logo Options: gt, coc, cse, cs, ic, scp
\usepackage[cse]{gt-letterhead}
You still have to set the footer text yourself like this
\fromdept{College of Computing}
because the department guidelines are unclear on if you should specify the college or school.
The skeleton of gt-letterhead.sty was copied from Luke Olson's reproduction of the University of Illinois at Urbana-Champaign letterhead, though little of the original remains.
MIT