> For the complete documentation index, see [llms.txt](https://customix.gitbook.io/overview/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://customix.gitbook.io/overview/menu/templates/previews.md).

# Previews

The **Preview** section is where you define how your print file appears on the actual product image — giving customers a realistic, live visualization of their personalized design.

## Uploading Product Images

Start by uploading a product image (mockup) using the **“Change”** button or the "+" icon in the right panel. This will serve as the background for your preview — for example, a blank T-shirt, mug, or canvas.

You can either:

* **Select an existing mockup** from your **Assets**
* Or **upload a new mockup image** directly from your device

<figure><img src="https://4235989069-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrihgZgEjEfk2NzCONWV0%2Fuploads%2F7meULpOJj4GEvxpqiBEu%2FMockup%203.png?alt=media&amp;token=8c62c3a3-37c2-4eed-8192-ff9f2aea2b31" alt=""><figcaption><p>Add product images/mockups</p></figcaption></figure>

## Adding a Print File to the Preview

After setting your product mockup, the next step is to **add the print file** to your preview. This allows customers to see how their personalized design will appear on the actual product.

To do this:

1. Click **“Add Layer”** on the left panel
2. Select **“Print File”** from the options
3. Choose the print file (e.g., “Front Print”) that you previously created
4. Position and resize it to align with the correct area on the mockup (e.g., center of a shirt)

You can add **multiple print files** (e.g., front and back views) if your product supports it.

<figure><img src="https://4235989069-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrihgZgEjEfk2NzCONWV0%2Fuploads%2FZx9g1CkFgUcPhUeZCaR9%2Fadd%20files.png?alt=media&amp;token=9d39e949-cc4c-462f-aa04-d6e61984c20c" alt=""><figcaption><p>Add print files to the preview</p></figcaption></figure>

## Adding Multiple Previews

If your product has multiple **variants**, **colors**, or **angles**, you can set up multiple previews to match them.

At the bottom of the preview editor, you'll find a bar where you can:

* **Add more previews** by clicking the **plus (+)** icon
* **Switch between previews** to edit each one individually
* **Delete** or **duplicate** previews for faster setup

Each preview can use a different product mockup (e.g., black shirt vs. grey shirt), and you can position the print file separately for each view.

<figure><img src="https://4235989069-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrihgZgEjEfk2NzCONWV0%2Fuploads%2FfUII1u27YstC2IkWhBJw%2Fmultiple%20previews%20.png?alt=media&amp;token=7a1e4727-5c85-4093-9cc2-320f8fa44c63" alt=""><figcaption><p>Multiple previews </p></figcaption></figure>

Once you've finished setting up your preview, don’t forget to click the **Save** button in the top-right corner to save your changes and finalize the template.