Gemini Image Prompts for Print Production
Nine plain-language prompts for Google’s Gemini image models, nicknamed Nano Banana. They cover mockups, scale, installation, lighting, materials and proof checks for large format work, with the limits stated for each.
- 1 Pick a prompt
- 2 Replace the brackets with your job
- 3 Paste it into the Gemini app or Google AI Studio
All prompts
9 of 9GP-01Instant mockups
Show the client the finished van or wall before they approve the quoteSales & Approval
A flat logo on a PDF doesn’t tell a client what a van or a facade will look like. Generating the scene is quicker than warping artwork onto a stock photo, and it’s good enough for a concept proof.
Photorealistic street level view of a white [VEHICLE MODEL] delivery van parked on a sunny street, featuring a large vinyl wrap logo that says ‘[CLIENT BRAND NAME]’ in [COLOR] typography, geometric pattern design on the side panel, high resolution, commercial photography style.
With a real photo of the site, upload it and ask for an edit instead.
Edit this photo. Fill the blank wall with a vinyl mural featuring [DESIGN CONCEPT]. Keep the building, windows and lighting unchanged.
GP-02Scale with a human reference
Put a person next to the graphic so the size explains itselfSales & Approval
“I thought 10 feet would look bigger” is a conversation you want before the print, not after. A person standing next to the display does more than a dimension on the quote.
A modern trade show booth display, 10 feet wide by 8 feet tall, displaying a banner with [THEME] graphics. A business professional in a suit is standing next to the display for scale, photorealistic lighting, 4k.
GP-03Installation context
Show the lift, cones and crew behind the installation line itemSales & Approval
Clients balk at installation fees when they can’t see the work involved. A picture of the lift, the cones and the crew explains the line item better than a paragraph in the quote.
Construction site view of a large building facade, workers on a scissor lift installing a large vinyl mesh banner, safety cones, realistic daytime lighting, commercial site context.
GP-04Day and night lighting
Sell backlit signs by showing the sign unlit and litSales & Approval
Backlit signs are hard to sell from a spec sheet. Generate the sign unlit in daylight, then lit at night, and the client sees what the extra cost buys.
Daytime street view of a boutique storefront, unlit lightbox sign with the text ‘[CLIENT NAME]’, soft natural light, commercial photography style.
Night time street view of a boutique storefront, illuminated lightbox sign glowing with the text ‘[CLIENT NAME]’, neon glow effect, cinematic lighting, wet pavement reflection.
GP-05Weathering comparison
Start the premium laminate conversation with a new-versus-aged imageMaterials
Premium laminate is a hard upsell when the client only sees the price difference. A split image of a new sign and an aged one gives the conversation a starting point.
Split screen comparison. Left side: A vibrant, new outdoor sign. Right side: The same sign but faded, cracked, and sun-damaged after 3 years of weather exposure. Realistic weathering effects.
GP-06Tileable patterns for wall graphics
Pattern fills that avoid awkward cut-offs where panels meetMaterials
For pattern-based wall graphics, a tileable pattern avoids awkward cut-offs where panels meet. It doesn’t help with a photographic mural that needs a planned panel split, so don’t expect it to.
Seamless floral texture pattern, high contrast colors, vector style, tileable, suitable for large format wallpaper.
GP-07Substrate close-ups
Make the difference between mesh, canvas and gloss vinyl visibleMaterials
Clients mix up mesh, canvas and gloss vinyl. A macro shot of the printed logo on each material makes the difference visible.
Close up macro shot of a printed logo on perforated mesh vinyl material, seeing the small holes and texture, sunlight passing through, realistic fabric texture.
GP-08Layout and type check
Compare the approved artwork with a photo of the proofProof Checks
Upload the approved artwork and a photo or screenshot of the proof. Gemini can catch a missing element, a swapped font or shifted text.
Compare these two images. The first is the approved digital artwork and the second is a photo of the print proof. List any differences in layout, text content, font weight and element positions. Do not comment on color.
GP-09First-pass damage description
Get a plain description of a failed graphic before the inspectionProof Checks
When a warranty claim lands, a photo of the failed graphic can go through Gemini for a plain description of what is visible.
Analyze this image of a damaged vinyl graphic. Describe the edges and the surface. Do they show lifting consistent with adhesive failure, or marks consistent with physical scraping or tearing? Say what you can and cannot tell from the photo.
No prompts match that search. Clear the search box or pick All.
What Nano Banana is, and what it isn’t
A large format quote rarely stalls at the printer. It stalls when the client can’t picture the finished job, asks for a third mockup, or wants to know whether the cheaper vinyl will look tired in three years. Google’s Gemini image models, nicknamed Nano Banana, are fast enough to answer those questions during the sales conversation.
Nano Banana is Google’s nickname for its Gemini image models. It started as the nickname for Gemini 2.5 Flash Image. The family now includes Nano Banana 2.1 and Nano Banana Pro (Gemini 3 Pro Image), and Google is retiring the older versions. They are Gemini models and not part of Google’s older Imagen family. You run them in the Gemini app or Google AI Studio by describing the image in plain language, or by uploading a photo and asking for an edit. Model names change often, so check what the Gemini app offers today.
Every image these prompts produce is a concept image. It shows intent to a client. It is not production artwork, and the next section explains why.
Where it goes wrong
Lettering
Text rendering has improved a lot but still fails often enough to matter, especially with long copy, small type or a client’s exact brand font. Ask for the scene with a blank sign area and set the real type yourself in Illustrator or Canva. You also end up with a file you can use.
Overloaded prompts
A prompt that describes the subject, the shoes, the sky, a bird and a car in the background gets you extra fingers and odd shadows. Describe the subject and the setting. Add detail once the first result is close.
Resolution
A generated image has no real print resolution. DPI is a tag, and the pixel count is what counts. Check the actual dimensions of the file you get and do the math: a 10 ft banner (120 in) at 100 ppi needs 12,000 pixels across, and a generated image is a fraction of that. After the client approves the concept, either rebuild the artwork as vector (Illustrator Image Trace works for simple graphics) or upscale it with a dedicated upscaler and inspect the result at full size. The DPI checker does the effective-resolution math for any size.
Background removal
Left out of the list on purpose. Gemini can remove a background if you ask, and so can Photoshop, Illustrator and a dozen free tools. There’s no prompt worth copying, and I haven’t seen evidence it beats what you already own.
Frequently asked questions
What is Nano Banana?
Nano Banana is the nickname for the Gemini image models from Google. It started as the nickname for Gemini 2.5 Flash Image, and the family now includes Nano Banana 2.1 and Nano Banana Pro (Gemini 3 Pro Image), with Pro aimed at the highest quality. Google adopted the nickname after it spread during public testing. These are Gemini models and are not part of the Imagen family.
Where do I run these prompts?
In the Gemini app or Google AI Studio with an image model selected. The prompts are written in plain language, so most of them also work in other image generators, but the results will differ.
Can I print AI-generated images directly on a large format printer?
Not at any real size. A generated image has a fixed pixel count, and a 10 ft banner at 100 ppi needs about 12,000 pixels across. Use the generated image for concept approval, then rebuild the artwork as vector or upscale it before production.
Can AI show how vinyl will age outdoors?
Only as an illustration. The model draws what faded and cracked vinyl looks like, but it knows nothing about your film, ink, laminate or climate. Use it to start the conversation about premium materials, and use manufacturer test data for any lifespan or warranty claim.
Can Gemini check a proof against the approved artwork?
It can catch layout and typography problems such as a missing element, a swapped font or shifted text. It cannot judge color accuracy from a photo or screenshot, so use a spectrophotometer and your RIP profile for color.
Written by Kjell Karlsson, founder of Printing TLDR. 30+ years in large format printing, 10+ in DTF. No vendor affiliations, no sponsored placements.
Last reviewed: October 2026 · Reviewed by Kjell Karlsson, Printing TLDR