Quick tools for print files and custom products
How they work
Private by design
Every tool here follows the same three rules.
Nothing is uploaded
Files are opened and measured by code running in your browser. They are never sent to a server.
Built on our app's engine
The file tools use the engine inside Upload Center, our Shopify app, so they measure files the way a real print store does.
Free, with no sign-up
No account, no email address and no limits on how many files you check.
Guides
Learn the background
Shopify4 min read
How to collect print-ready files from customers on Shopify
Custom print orders stall when the artwork arrives by email, in the wrong size or at low resolution. Here is how to take file uploads on the product page, check them automatically and price by size.
Read the articlePrinting4 min read
DTF print file requirements: size, DPI, format and colour
What a DTF printer needs from your artwork: a transparent PNG or a PDF, 300 DPI at the printed size, solid edges and the right dimensions. With a free tool to check a file.
Read the articlePrinting4 min read
What is a DTF gang sheet? Sizes, layout and how to build one
A gang sheet puts many designs on one sheet of DTF film to lower the cost per transfer. Here are the common sizes, how to lay one out, and how to work out how many designs fit.
Read the article
Need these checks inside your own store?
Upload Center brings file uploads, automatic file checks and size-based pricing to Shopify product pages.