Few years with pdffiller I am their client for almost 3 years. I did my best to get how it works and was making bad reviews in appstore because complicated ui on the start. I was checking out competiting editors, but I could say that other apps were even more complicated. Many things changed from that time and editor became much more user friendly, got new options for saving money and time. I am less about challenging their customer service but sometimes updates are a bit confusing.

Excellent Customer Support I received quick email responses from costumer support and very fair and kind help - I wasn't aware of my subscription status and was billed for a full year. Because I didn't need the full year subscription, I cancelled my subscription and emailed customer support right away to let them know. I requested a refund and it was kindly granted. Mind you, I emailed them as soon as I got my billing notification from PayPal and my bank account hadn't been charged yet - but they made sure to refund me before I was charged! Many thanks to the helpful customer support worker.