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Speed Up Midjourney Designs: Smart Tips for Print on Demand Artists

Apr 28, 2025

4 min read

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A Midjourney generated image using Midjourney Automation Suite

Ready to make awesome art for print on demand using Midjourney? Getting great results fast is key. This guide shares simple tips to boost your Midjourney workflow and create better designs for t-shirts, stickers, and more.

Repeat Prompts Quickly with `--repeat`

Typing the same prompt over and over is slow. Midjourney has a simple way to fix this: the `--repeat` parameter.

Just add `--repeat` followed by a number (up to 40) at the end of your prompt. For example, `cat t-shirt design --repeat 5`. Midjourney will ask you to confirm, and then it runs your prompt multiple times automatically.

This is super handy when you want lots of variations of a basic idea without manually re-typing or using the up arrow function. It saves a lot of time and effort when brainstorming design options.

Avoid Mockups with `--no mock-up`

Often, Midjourney shows your design on a t-shirt or a model. For print on demand, you usually just need the graphic itself, not a mockup.

To tell Midjourney to skip mockups, add `--no mock-up` at the end of your prompt. This doesn't work literally every time, but it greatly reduces the chance of getting results that look like product displays instead of clean graphics ready for printing.

Using `--no mock-up` helps you get more usable design files straight from Midjourney.

Create Tons of Variations with Permutations

This tip is a big time saver. Midjourney's permutation feature lets you run many different prompts from just one input line.

You use `{}` brackets and `|` bars to list options. Midjourney will create a prompt for every possible combination.

Varying Objects or Subjects

Suppose you want t-shirt designs of different vehicles in front of a forest. Instead of running three prompts (car, motorbike, train), you can use:

`t-shirt design graphic of {car|motorbike|train} in front of a forest`

Midjourney will generate:

  • t-shirt design graphic of car in front of a forest

  • t-shirt design graphic of motorbike in front of a forest

  • t-shirt design graphic of train in front of a forest

Varying Locations or Styles

You can add more brackets. Let's say you want those vehicles at different locations:

`t-shirt design graphic of {car|motorbike|train} in front of a {beach|desert|forest}`

This single input creates 3 (vehicles) * 3 (locations) = 9 different prompts. You can see how this starts to explode your work speed.

Varying Parameters

This also works for parameters like `--s` (stylize), `--v` (version), or `--niji`:

`cute {dog|cat} in a park --s {0|250|800}`

This creates 2 (animals) * 3 (stylize settings) = 6 prompts, showing how the style changes. You can quickly compare results.

Permutations can quickly use your 'fast hours' due to the number of prompts generated, but they are incredibly powerful for exploring many ideas at once.

Managing this many prompts efficiently can be challenging. Consider using a dedicated tool to manage and organize your Midjourney creations. The Midjourney Automation Suite from TitanXT is designed to help you handle bulk generation and keep your projects organized.

Get Prompt Ideas with `/describe`

Seen an image style you like but don't know how to prompt it? Midjourney's `/describe` command can help.

Type `/describe`, then upload an image. Midjourney will analyze the image and suggest four different prompts you could use to create similar art.

This is great for:

  • Learning new keywords and prompt structures from how Midjourney describes your image.

  • Getting variations of an image you like, even if it's not yours (though remember ethical use and creative ownership).

The results won't be an exact copy, but they will try to capture the style or feeling of the original image. It's a useful way to expand your prompting vocabulary.

Turn Images into Vectors with Vectorizer AI

Midjourney images are typically in pixels, which don't scale well. Print on demand often needs large, crisp images.

Vectorizer AI (vectorizer.ai) is an amazing tool for this. It turns your pixel-based images into vector graphics, which are infinitely scalable without losing quality. It's currently free to use while it's in beta.

Simply upload your Midjourney image. Vectorizer AI converts it, giving you a smooth vector file. While many POD platforms require PNG or JPEG, you can download the vector file (like an SVG or EPS) and then open it in graphics software (like Adobe Illustrator or even free alternatives like Inkscape).

From there, you can scale it huge, remove backgrounds, and save it as a high-resolution PNG or JPEG. This is far better for huge prints than just using a standard pixel upscaler. With vector software, you can even easily change colors or tweak parts of the design.

Streamlining your design process further is simple with tools like the Midjourney Automation Suite from TitanXT. It can connect your AI generation and design workflow, making it easier to get files print-ready.

Quickly Remove Backgrounds with Adobe Express

Many print on demand products need designs with a clear background. Adobe Express offers a free online tool to remove backgrounds from images quickly.

Just go to their site, upload your image, and the tool automatically removes the background. This works best when your design has a clear outline against a solid or distinct background.

You can then download the result as a PNG with a transparent background, ready to upload to your print on demand platform. It's a fast and free step in preparing your files.

Final Thoughts

Using Midjourney for print on demand opens up many creative possibilities. By using features like `--repeat`, `--no mock-up`, and permutations, you can generate ideas much faster. Tools like `/describe`, Vectorizer AI, and free background removers help you refine your designs and prepare them correctly for printing.

Trying out these tips can significantly speed up your design process and help you get better results for your print on demand business.

To take your Midjourney workflow to the next level, explore automation options. The Midjourney Automation Suite from TitanXT provides advanced tools for managing, generating, and organizing your AI designs efficiently.

Apr 28, 2025

4 min read

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Midjourney Automation Suite - Automate your image generation workflows on Midjourney | Product Hunt