A user sought a solution to dynamically overlay a logo image onto variant product images for T-shirts, aiming to avoid manually creating and uploading images for each of 30 color variants.
Problem Context:
Selling T-shirts with custom logos
Need to display logo on different colored shirt variants when selected
Goal: automate image composition to save production time
Proposed Solutions:
One developer offered to provide a custom solution after reviewing the store details
Another suggested using custom code with CSS + JavaScript or Liquid templating, involving:
Setting the logo as a transparent PNG
Positioning it absolutely over variant images
Swapping background images on variant selection while keeping the logo overlay fixed
Resolution:
The original poster marked the issue as solved using an app called “TA Labels and Badges” instead of implementing custom code.
Summarized with AI on October 24.
AI used: claude-sonnet-4-5-20250929.
I am selling T Shirts with a image that we produce.
Looking for a way to combine / overlay the first product image that will be the logo image on top of the variant image and display as you click the different variant colors.
For each product, it would be one logo image and 30 different shirt colors. Would be great that when you click on the colors, the final product would display… Would save tons of time over creating a image for each color individually and uploading.
Yes, that’s possible. One way is to use some custom code: set your logo as a transparent PNG and overlay it on top of each variant image using CSS + JavaScript (or Liquid in your theme). Then, when a variant is selected, the background image changes but the logo overlay stays in place. If you need ready code, you’ll need to edit your product.liquid / main-product.liquid template and add a wrapper div with the logo positioned absolutely.”