The Shopify gang sheet builder that does the hard part.
Customers drag, drop, and arrange. Our engine cleans their files, packs the sheet, and hands you a 300 DPI print-ready PNG on every order.
Find us on Shopify
It lives on your product page, not in your inbox.
A gang sheet builder is software that lets a customer arrange many designs on one sheet of DTF film, sized to your printer, and buy it at a price calculated from the sheet. Without one, every custom order means emailed files, a quote, and someone in your shop laying the sheet out by hand in Photoshop.
customDTF puts that builder inside your own Shopify storefront, so customers never leave your brand. It packs their designs for you, checks every image for print quality, and generates the finished print file the moment the order is paid. You print. You do not lay out, chase files, or rebuild a sheet for a reorder.
Not sure what a gang sheet is yet? Start with what a DTF gang sheet is and how it is priced.
Live in your store in minutes.
Five steps from install to the first print file. Prefer to watch? The two-minute setup video covers the whole thing, or let us set it up for free.
- 1
Install from the Shopify App Store
Free to install. The app connects to your store and opens on a setup screen that walks through each selling flow.
- 2
Set your printer width and pricing
Enter the width your printer and film run at and how you price sheets. The canvas, the nesting, and the live price all follow these settings.
- 3
Add the builder to a product page
Drop the "Build a Gang Sheet" button onto any product page with the theme extension. No code and no theme edits; it can even be a product you already sell.
- 4
Customers build their sheet
They upload artwork, auto-arrange it, fix anything the DPI badges flag, and add the sheet to the cart at the live price.
- 5
The print file lands on the order
Checkout triggers the render: a 300 DPI PNG stamped with the order number and a QR code, attached to the Shopify order as a download link.
Everything a builder should do, and the parts most skip.
Auto-nesting
MaxRects bin-packing places every design for maximum sheet coverage, with rotation and spacing handled automatically. One click re-packs the whole sheet.
Uploads from any device
PNG, JPEG, WebP, and PDF. A QR code lets customers send files straight from their phone to the builder on their desktop.
Size and DPI checks
Every image shows a live DPI badge for the size it is placed at: green at 300 DPI and above, flagged below. Problems get fixed before checkout, not after printing.
Image clean-up
Background removal at full source resolution, halftone conversion tuned for DTF film, AI upscaling for low-res art, and automatic trimming of transparent edges.
AI artwork checks
Marvin, the AI inside the builder, looks at each uploaded image, spots what will print badly, and tells the customer what to fix.
Meet MarvinYour library, your look
Manage an image library with categories for customers to pick from, and customize the builder’s colors and appearance to match your store.
Print-ready order output
300 DPI PNG per sheet, stamped with the order number and a QR code. Oversized layouts split into indexed pages automatically.
Build sheets for customers
Phone and email orders go through the same builder: create a sheet on a customer’s behalf from the admin, with the same pricing and output.
Built different from every other gang sheet app.
Print-Perfect Image Processing
Every image runs through the best APIs money can buy. Background removal at full source resolution. AI upscaling that guarantees 300 DPI on the final print. Automatic trimming of transparent edges.
- Background removal: clean edges, even on complex images
- AI upscaling: crisp 300 DPI output from low-res source files
- Live DPI badges: customers fix quality issues before checkout
Smart Auto-Arrange
MaxRects bin-packing nests every design to squeeze the most out of each sheet. Every square inch counts: less wasted film means lower cost per transfer.
- Packs designs tight to maximize sheet coverage
- Handles rotation and spacing automatically
- Tall sheets split into print-ready pages automatically
Zero Variants. Zero Draft Orders. Zero Chaos.
Most gang sheet apps mint a new product variant for every single custom sheet: thousands of throwaway variants polluting your admin, a hard 2048-variant ceiling that eventually locks customers out of checkout, and cleanup jobs that delete the variants customers try to reorder later.
This builder never creates one. It sells through a single permanent product (it can even be an existing product in your store), and the exact price rides to checkout with Shopify Functions, Shopify's own native checkout pricing. Nothing minted, nothing to clean up, nothing to hit a cap. The full story is in the Shopify variant limit and gang sheet apps.
- No variants created, ever. No 2048-variant time bomb
- Reorders keep working months later: no cleanup job can break them
- Order-stamped, QR-coded PNG delivered with every order
One link on the order. Everything your printer needs.
Every order line carries a viewer link: each sheet named by the flow it came from, with its own View and Download buttons, the source artwork behind a click (including the original file next to any background-removed or upscaled version), and a pencil to re-edit the sheet even after purchase.
- Print-ready download per sheet, stamped with the order number
- Original and processed artwork side by side: never print the wrong file
- Re-edit any sheet after purchase; customers reorder in one click
Built on Shopify’s own building blocks.
No external checkout, no iframe storefront, no parallel order system. The builder uses the same pieces Shopify gives every app, so your theme, checkout, discounts, and order history keep working exactly as they do today.
- Theme app extension: the builder button drops onto any product page in the theme editor
- One permanent product per flow, which can be a product already in your catalog
- Exact price applied at checkout by Shopify Functions, with no variants and no draft orders
- Customers stay in the standard Shopify checkout, so your discount codes keep working
- Print file attached to the Shopify order as a download link
- One-click reorder from the customer account
- Cross-sell add-ons offered at checkout
- Billing through Shopify’s own billing, itemized on your Shopify invoice
Made for DTF print shops selling on Shopify.
A good fit if you
- Print DTF transfers and sell them through a Shopify store
- Lay out customer gang sheets by hand today and want that time back
- Run a gang sheet app that creates variants and want a clean catalog
- Want customers who design, order by size, and upload finished files all served from one app
Not the right tool if you
- Sell on WooCommerce, WordPress, Wix, or Etsy. customDTF is Shopify only.
- Are looking to buy DTF transfers. We make software for print shops; we do not print.
- Only need a desktop layout tool for your own in-house sheets, with no online store.
Free to start. Paid only when you sell.
Installing is free and there is no monthly fee. Your first 10 gang sheets carry no commission, which is enough to set up the builder, place test orders, and sell to real customers before you pay anything. After that you pay only when a gang sheet sells, and never more than the cap.
To install
No subscription, no setup fee, every feature included.
Free gang sheets
Your first 10 sheets carry no commission at all.
Per order, after that
Of gang-sheet sales only. Shipping, taxes, and tips excluded.
Cap per 30 days
Commission stops at the cap however much you sell.
Full detail, billing, and a breakdown of how gang sheet apps charge on the pricing page. To check your own margins first, run your numbers through the free gang sheet calculator.
Shopping around?
Every builder demos well. The differences that cost money show up months later: at the variant ceiling, on a failed reorder, in wasted film. Our buyer’s guide turns that into seven questions you can ask any vendor, including us. Compare gang sheet builders, or see how customDTF differs from a specific app:
Plan your sheets before you sell them.
Frequently Asked Questions
Everything shops ask about the gang sheet builder. Something missing? Ask us directly.
Is there a free gang sheet builder?
Does it work with WooCommerce or WordPress?
What file formats and DPI does the builder accept?
How big can a gang sheet be?
What do I receive when an order comes in?
Will it flood my store with products, variants, or draft orders?
How long does setup take?
Can customers reorder a past gang sheet?
Put the builder on your store today.
Free to install, first 10 gang sheets commission-free, and free done-for-you setup if you want it.