Although I am working with VDX.TV, I do a lot of pet projects in my spare time. It can include anything. In these works, I gain a lot of experience. Links to such recent experiences are given below.
Embed all the font to a PDF
$ gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -dEmbedAllFonts=true -sOutputFile=<Output.pdf> -f <Input.pdf>