Pricing PDFs between $17 and $47 is a great starting point, as this range lowers the barrier for potential buyers and encourages more conversions.
Once you’ve established trust with your audience, you can consider upselling additional PDFs or complementary products at higher price points with more upsells, order bumps and then eventually high ticket backend offers.
But the PDF is the entry, like a front door to a house. Once inside, there are lots of rooms (e.g., more offers they could buy).