These individuals are scammers. I paid 50 cents to convert a PDF to a Word document.
However, 3 days later, I noticed that the we-pdf had deducted €49 from my credit card. I did not sign up for any subscription on the site, and there was no information about a free trial. While I believed I was paying for a one-time service of 50 cents, they withdrew €49 from me without my knowledge or consent.
This is outrageous; do not make any payments to them. They are also refusing to refund my money.