Customizer Help

Tips and Tricks that we hope will make using our Customizer fun, enjoyable, and the final product meeting your expectations.

Image Size & Negative Space

Our recommendation for image sizes are 12 to 13 inches wide by no more than 15 to 16 inches high, as the product allows. 12 inches in width is pretty much the standard for adult shirts and 10 inches wide are standard for youth shirts, with the height being proportional.

When placing your design onto a product, be more mindful of the image size than how the design size looks on the mockup. Not all mockups are of a certain size, for example some clothing mockups might use a medium shirt instead of an X-Large. Pay closer attention to the actual size of your design. The max image boundaries are preset by the Customizer.

Measurements are indicated above your design when you scale it, as highlighted in the image. It indicates the width and height of the image, including any negative space. It's W (left) x H (right). Width is the far left number and Height is the number that follows to the right.

Before uploading your image, we recommend that you remove (Crop) as much negative space around your design as possible to get the maximum use of product space and your design should be closer to your intended size.

Uploading Art

As mentioned earlier, we recommend that you remove (Crop) as much negative space around your design as possible to get a more accurate use of product space.

When uploading art, please take note of the max file size, acceptable file formats, and the design requirements per type of product you will be customizing. Knowing these requirements will make your use of the Customizer more enjoyable.

Acceptable file formats are PNG, JPG, GIF, SVG, AI, and CDR. Max file sizes are 10MB with a minimum resolution of 200dpi for clothing and a minimum resolution of 400dpi for accessories. The resolution will determine the sharpness and clarity of your design.

File formats are important. Your design should be isolated (transparent) from the background (shirt, mug, or other product). JPG files are not transparent. PNG and GIF files can be transparent, but GIFs do not scale as well as PNGs. Both formats must be made transparent prior to uploading. SVG, AI, & CDR files are vector not rasterized, hence the cleanest files that can be used. The drawback is the Customizer only recognizes them as one color. A multicolored SVG, AI, or CDR file will be uploaded as one image, but can be changed to any of the colors offered in the Customizer.

Print File Requirements

Requirements for Pixel Designs

PNG, JPG, BMP, or GIF file format.
Maximum file size 10 MB.
Image resolution at least 200 dpi for apparel.
Image resolution at least 400 dpi for non-apparel.
Maximum size 4000 x 4000 pixels.
Minimum size 1000 x 1000 pixels.
Design is isolated.

Requirements for Vector Designs

We support SVG, AI, and CDR file formats.
Your design must not exceed 15 x 15 inches. We recommend 11 x 11 inches as the ideal size.
Lines and other parts of the design must have a diameter of at least 0.06 inches.
Maximum 3 colors: we can print up to three colors with vector files as plot print (flex, flock, special flex). Vector files with more colors will be printed with Digital Direct.
Please create each color in your design as a separate layer.
All objects and text to be printed must be converted into paths.
Make sure that all curves are completely closed and do not overlap each other.
Please note: if the vector file is printed as a plot print (flex, flock, and special flex printing), an extra $2.50 /2,50€ will be added to the product price when they are selected. This is a one-time charge per product, not per design or print area.

Requirements for Poster Designs

Posters can only be printed if the following requirements are met:

Portrait (2:3 / 3:4), landscape (3:2 / 4:3) or square (1:1) format.
Resolution: 200 dpi minimum.
Minimum size:
Portrait: 4724 × 7087 px.
Landscape: 7087 × 4724 px.
Square: 4724 × 4724 px.
File formats: JPG, PNG.
Size limit: 100 MB.
Color profile: RGB or CMYK.
White design elements will not show up on the white poster backgrounds, you cannot print white designs.
Additional 2 mm margin on all sides (to avoid clipping).

Have a Question? Ask Us.

We are continually adding tips to this page. We'll add as much information as possible to make your time at T-Shirt Cola a more fun and enjoyable one. So please drop us your question and we'll try to add it here. Thanks!