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A shopper personalising a product in your store is buying from you. Everything they meet on the way should say so: the editor they design in, the preview they approve, and the link that preview arrives on. Three surfaces carry a name, and each one is set in a single place. This page says which place, and what each one changes. All three sit on a paid plan, and a custom domain is a monthly add-on on top of it.

Dress the editor

Studio is the editor you put inside your own product, and every visible part of it is yours. A logo served over HTTPS, an accent colour, a neutral palette, a corner radius from 0 to 20, a font, and a light or a dark theme. The words are yours too: the header, the upload prompt, both action buttons, and the two short lines the add to cart button shows while the item goes into the cart and once it is in. The interface language is English or Turkish. Settings are saved against one API key rather than against the account, so a seller running two storefronts dresses each one separately without opening a second account. A single session can also carry an override that is never written down, which is how a seasonal skin is put on the sessions your server opens during a campaign and disappears the moment it stops sending it. Set up the editor your buyers see walks the whole form.

Decide what a buyer can change

Branding is what a shopper sees. Controls are what they can do, and those are chosen per editor, because the PSD editor and the photo editor do not offer the same work. Switching one off takes it out of every session opened with that key. Naming a colour palette closes free colour entry, so a shopper picks from the colours you actually print rather than from a colour wheel. The upload ceiling runs from 1 to 50 MB. Together they keep a buyer inside the decisions you are willing to fulfil, which is the difference between a design you can produce and a support ticket.

Serve the images from your own name

A render comes back as a URL, and by default the host on that URL is ours. Add a subdomain you own, such as cdn.yourbrand.com, publish the three records the dashboard hands you, and the same image is served from your name instead. The call, the artwork and the file do not change. Only the host does. Which domain a call uses is decided in order: the domain bound to the API key that signed the call, then the account default, then any domain the account has active. Binding a key to its own domain is how one account serves two brands whose links never mention each other. The preview a shopper sees inside the editor carries the same host, because a Studio session renders with the key that opened it. Branding and the link agree without a second setting. Serve mockups from your own domain covers setup, status and bindings.

On Shopify and WooCommerce

The official app and the official plugin place the Customize button, open the session and keep the approved render on the order, so the file you fulfil is the file the shopper signed off. Branding lives in the app’s own settings screen rather than in theme code, which means a change reaches the storefront without a theme deploy. Both engines are available on a product. Map a PSD template when the product needs Photoshop fidelity, or a product photo mockup when a photograph is what you have. Shopify and WooCommerce each cover install, mapping and the button.

On a storefront you built yourself

A custom storefront takes the same path the official app takes. Your server opens a Studio session, names the page allowed to host the editor, and hands the browser a short lived token, so your API key stays on your side. When the shopper is done, your server confirms the result and gets a receipt it can store beside its own order record. How to build a buyer facing live preview walks that path, including how to open the editor on the design a shopper already saw in a preview card.

Example workflow: one account, two storefronts

A seller runs an apparel store and a gift store and wants each to look like itself.
  1. Issue two API keys, one per storefront.
  2. Open Studio settings on the first key. Load the apparel logo, set the accent to that brand’s colour, name the palette as the four garment colours it stocks, and write the button as that store writes it.
  3. Repeat on the second key with the gift brand’s logo, its own theme and its own palette.
  4. Add cdn.apparelbrand.example and cdn.giftbrand.example in Custom domains and bind each one to its key.
  5. Point each storefront at its own key.
A shopper in either store meets one brand from the first upload to the order confirmation, and neither storefront has to know the other exists.