I'm not trolling, just genuinely curious: How do you support word/excel/powerpoint 100% if you're not printing from the app themselves? Also, for the develope

I'm not trolling, just genuinely curious: How do you support word/excel/powerpoint 100% if you're not printing from the app themselves? Also, for the developer API, do you add advertising to the documents you convert? Are you approachable about private licensing?