Not mine but this is actually what I did too.
I said I plan to charge back on my credit card. They threatened that if I did that, they can’t promise my account wouldnt be flagged.
I said “bet” and they removed the cancellation fee and cancelled the service.
I vaguely remember (but can’t find it right now) that the PDF format became open source at some point and free alternatives came out for PDF editing. And that was already back in the 2000s when people still printed documents (which is what PDF was originally meant for).
In modern times, every browser/OS can read PDF, every text editor can export to PDF, nobody prints physical documents and there are free alternatives – so why do they still exist and who is paying?