Be able to place, move and resize form elements around PDF pages and save the resultant PDF and its Forms
https://jsfiddle.net/Hopding/bct7vngL/4/ as example for pdf-lib form adding

Should support
createCheckBox
createDropdown
createOptionList
createRadioGroup
createTextField

I expect this to look somewhat like the sign PDF, with a add entry type button, draggable and resizable entry, which then results in a output from pdf-lib