PTB is a gang sheet builder for print shops on Shopify. Customers upload their art and Auto Build nests it by real shape instead of boxes. They get a warning if a file's DPI is too low and can fix the art instantly with background removal, color knockout, halftones and text. You get a 300 DPI PNG that syncs to Google Drive or Dropbox, so it drops into your RIP hot folder. It works for DTF, UV DTF and sublimation, on desktop and mobile. It's free to install, then 5% per order, capped at $10 USD.