[eksurfus]

We regularly perform PDF extractions at my startup. For each new client, we'll run batches of several thousand at a time.

A more attractive monetization model for a customer like us would be $0.01-0.03/conversion ($100-$300 per 10,000). A low per-conversion cost would easily allow us to test for a given group of PDFs if the conversion service was a good candidate for that batch, and if not, chose an alternative up-front (but allow us to test again the next batch easily at low cost). Also with a low start-up cost, its much easier to tell customers you won't make any specific fixes (take it or leave it, and test it first). Then you'd have the flexibility to work on broad classes of problems/improvements more at your leisure.