Build front end editor to edit a js file

I have a html page, it has a button "tedPDF" , when you press this button a pdf is generated. This pdf's is generated using pdfkit and the design of this pdf is coming from [login to view URL] I want you a front end system to place my 'text" by drag , change font size, weight, color,image from front end. I want to do this because i quickly want to make many designs as coding [login to view URL] takes a lot of time. You can check pdf generation here - open "[login to view URL]" in chrome. zip - [login to view URL]