Pixel graphics cannot be used for plotting. These need to be rendered into vector graphics.
Some programs perform this task automatically for you. In Adobe Illustrator, this function is called line trace. If you use Corel Draw, use vectorize bitmaps.
Alternatively you can also render your file manually. In Adobe, there is a feature called pen tool, and in Corel it is the freehand tool which deliver good results to thicken lines and corners with your mouse or on your pen tablet.
You can also ask our Graphics Service to assist you with this task. For $19.99, our experts will turn your template into vector graphics.
Our help section is divided into different categories which deal with the Spreadshirt platform. We answer frequently asked questions about how you can create a t-shirt, how to sell shirts on our platform and what printing techniques are used when we print shirts. Also find information about Spreadshirt's prices, Spreadshirt apparel and answers to questions about orders made at Spreadshirt.