Asked PDF Guru for a refund and sharing how it went
Here's a fun pattern I keep repeating: sign up for a thing, use it, stop using it, forget it exists, get surprised by a charge. This time it was PDF Guru. Used the converter for a few days, handled all my work files, then POOF… gone from my mind. Two days before the next renewal, I finally remembered. Emailed their support team asking for a refund. They explained that since I'd actually used the converter, I wasn't getting the full amount back, just a partial refund for the time I didn't use it.
Turns out that if you're in the EU, you have 14 days from the purchase date to request a refund. If you haven't used the product at all, you get the full amount back. If you have, like me, you get a partial refund based on how much you actually used.