Definitely Useful As I mentioned, it makes the mailing process much more efficient. PDFiller allows you to create and mail PDFs easily, saving you the hassle of getting an envelope, purchasing a stamp, maybe having to go to the post office, etc. For me that has been its greatest strength. The PDF customization interface isn't bad, but it's not immediately usable. It takes a little bit of time to learn how to use it effectively. Right off the bat: I would not recommend this software to someone who isn't tech savvy or doesn't want a bit of a learning curve, for example, employers I've had in their 50s, 60s, and 70s who don't really "get" technology. The interface is fine if you just want to sign a document, but is not particularly intuitive when it comes to doing simple things like outright deleting portions of text. Too many steps.

PDFfiller has is a great application for my personal and business life Used to fill out tax and health forms. Used it fill forms related to my real estate business as the forms are repetitive and can be revised easily I like that I can email documents or email them from the application I like that I can store all of my documents in one place and retrieve them easily I like that I can redo forms that need to be submitted annually without having to refill out the entire document. I just update what is new. I can't think of any downside to the product