PDF.ai + Testimonial.to
by Damon Chen
Damon Chen builds in public and posted crossing $100K a month combined across PDF.ai, his chat-with-documents tool, and Testimonial.to.
What they built
Damon Chen runs two products that solve two very different chores. PDF.ai lets you upload a document and ask it questions, so a contract, a research paper or a manual becomes something you can chat with instead of skim for an hour. Testimonial.to collects video and text reviews from customers and gives you a widget to embed them on your site, which turns social proof into a one-afternoon job. Different problems, same operator.
How they did it
Testimonial.to came first and gave Damon an audience and steady cash. When AI made chat-with-your-documents suddenly possible, he moved fast and shipped PDF.ai into a wave of demand. He builds in public, posts revenue openly, and cross-promotes between the two products and his own following. Running two calm SaaS tools in parallel, rather than betting everything on one, is a deliberate hedge.
“✅ $100K MRR now with Testimonial.to and PDF.ai. Testimonial is $70K MRR and PDF AI is $30K MRR = $100K MRR. Next goal: Grow each app to $83,334 MRR”
View on XThe numbers
Damon publicly posted crossing $100K a month combined, with Testimonial.to at $70K MRR and PDF.ai at $30K MRR at the time (source). Both are founder-reported figures, so read them as claimed rather than audited.
What to take from it: a boring, cash-generating tool can fund your shot at the next wave. Testimonial.to paid the bills while PDF.ai let Damon ride the AI moment without betting the house.
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