App needs help

Cant open the zipped files, need to put in an UNDO process, better instructions on its operation. I wouldnt suggest this app in its current form. I know you can make this a better app if you want to. Not worth the 99 cents it cost. Export function is confusing, export to email? I need to save signature as png, export it to my camera roll to past in other docs, cant do this.

Paa80 about My Signature