This is an accepted solution.
In Shopify, by default you cannot edit the checkout page unless you are using the Shopify Plus account so, you cannot add the badges on that page.
But if you want to add it on the cart page or the product page then you can do it so by creating a new sections using schema and then adding the badges manually from the customize section.
I noticed that you wanted to apply Trust badges on your checkout page.
Well, in order to grab users attention with Free Shipping or Verified products, you can also attach custom badges or labels in catalog images as a foolproof method. For example, Amazon uses Amazon's Choice badges on certain products which gives visitors a sense of trust to buy.
We have developed an app (Modemagic) that will help you add product stickers/badges on your catalog within seconds. And we have an extensive collection of customized stickers based on different occasions (Sale & Discounts, Pre-Order, Trust Badges, and much more) You can also create custom badges based on what copy you prefer.
No complex edits, no back & forth with designers. Update your store within seconds!
Don’t find a sticker that meets your need, reach out to us on chat for a custom design. We also create stickers in various languages. Check out this app on Shopify here.
Hope this helps.