Product Designer Add On

I need an addon for existing product designer plugin. Wordpess Product Designer or Fancy Product Designer. I am creating this site for book covers. I need a tweak so the finished image can be downloaded in at least 300dpi jpeg, png and pdf choices. I also need to be able to set sizes that can be chosen during purchase or re-edit. MY MAX BUDGET IS $80. PLEASE DO NOT BID IF YOU CAN NOT DO AT THIS PRICE. Thank you for time. Look forward to hearing from you.