> Wow! Thanks for your nice comment.

NP - happy to help.

  > About your PowerPoint question ... do you know the answer
  > and just want to say that I need to make this more obvious? :)

I know an answer, but I think you could make your selling point clearer. Someone who doesn't read it as carefully as I might think this offers no real value over what they already do. To me, if someone creates lots of PDFs, broadly in bulk, broadly the same, this can offer huge advantages. That's implicit in your copy, but you need to make it more obvious to people.

  > ... many PowerPoint PDF exports while changing the content
  > of the document on each export ... just sending a template
  > document and some keys and values to be replaced.

Exactly - needs to be more obvious from the site.

  > The main pain it solved for me was that I don't need to do
  > layout changes for my customers if they are using some of
  > my software and want to change the layout ... 

Again, write-up a more detailed specific use case and link to it somewhere.

  > About the targeting to sys-admin types. This is correct.

And difficult to solve. The people doing the work will know its value, the people with the money will need convincing. You need to hand the sys-admin types a convincing case to pass on to the people with the money.

Hope that helps. Be warned, anything I say could easily be wrong. You should test, test, test, test my assertions. Some things appear obvious, but are wrong. Take nothing for granted, and pursue it relentlessly.