Posters & Promotional Prompts: Nano Banana Guide
Create professional posters, ads, and promotional graphics with perfect text using Nano Banana. Master layout and typography.
The ability to render accurate, legible text within an image is Nano Banana's superpower. This allows you to generate complete marketing assets—posters, flyers, and ads—in a single prompt, without needing to open Photoshop to add text later.
Understanding Text & Layout
To get great results, you need to think like a graphic designer. You aren't just describing a picture; you are describing a layout. You need to specify where the text goes, what font style to use, and how it interacts with the image.
Designing Posters
Create complete marketing assets from scratch, combining illustration and typography without needing a base image. This is ideal for when you have a concept but no assets.
COFFEE SHOP AD
Here is the complete, fully detailed prompt to generate the "COFFEE SHOP AD".
[Optional Base Image] Create a promotional poster for a coffee shop. Layout & Composition: - **Format**: Vertical poster (2:3 aspect ratio) - **Visual**: Close-up of a steaming cup of latte art on a rustic wooden table - **Lighting**: Warm morning sunlight streaming from the side (golden hour) - **Negative Space**: Clear area at the top for text Typography: - **Headline**: "Wake Up & Smell the Coffee" - **Font Style**: Bold, rustic serif font (hand-painted sign style) - **Color**: Chalk white or dark roasted bean brown - **Position**: Centered at the top third of the image Branding Details: - **Logo**: Small circular logo at the bottom center - **Vibe**: Cozy, inviting, artisanal, premium
Why This Works
The "Negative Space" Instruction: AI tends to fill every inch of an image with detail. Explicitly asking for "negative space at the top" ensures the text has a clean background to sit on, improving readability.
The Font Specificity: "Rustic serif font" is much better than just "text." It tells the AI to match the font personality to the image vibe (cozy coffee shop).
The Hierarchy: Defining a "Headline" (large) and a "Logo" (small) establishes a visual hierarchy, guiding the viewer's eye through the design.
Common Mistakes
Note:
Too Much Text: Nano Banana is great, but it's not a typesetter. If you ask for a paragraph of body copy, it will likely make mistakes. Stick to headlines, subheads, and short slogans (3-7 words).
The Music Festival
Loud, colorful, and energetic.
Create a psychedelic rock concert poster. - **Headline**: "SUMMER VIBES FEST" in warped, melting 1960s lettering - **Subtext**: "JULY 15-17" at the bottom - **Visual**: A melting electric guitar surrounded by colorful swirls - **Palette**: Neon pink, purple, and electric blue - **Style**: Vintage gig poster / screen print texture - **Vibe**: Trippy, energetic, retro
Key Detail: We used "warped lettering" and "screen print texture" to match the specific genre of music posters. These stylistic cues anchor the design to the psychedelic rock aesthetic rather than a generic poster.
The Tech Conference
Clean, modern, and structured.
Generate a modern flyer for a tech conference. - **Headline**: "FUTURE AI 2025" in clean, futuristic sans-serif font - **Subtext**: "Join the Revolution" in smaller thin text below - **Visual**: Abstract blue network nodes and data streams on dark background - **Layout**: Minimalist, plenty of dark negative space - **Vibe**: Professional, innovative, high-tech
Key Detail: We switched to "sans-serif font" and "minimalist layout" to communicate innovation and professionalism. The sans-serif typeface immediately signals "modern tech," while negative space prevents visual clutter and enhances readability.
The Movie Poster (Sci-Fi)
Capture the drama of cinema.
Create a cinematic movie poster for a sci-fi film. - **Title**: "THE LAST SIGNAL" in tall, metallic silver letters - **Visual**: An astronaut standing alone on a red alien planet - **Composition**: "Floating heads" style or lone hero silhouette - **Lighting**: Teal and orange cinematic contrast - **Credits**: Small "billing block" text at the very bottom (simulated)
Key Detail: The "metallic silver letters" and "teal and orange cinematic contrast" are crucial for movie poster authenticity. Metallic finishes make titles pop off the background, while the complementary color pair (teal-orange) creates dramatic cinematic depth. The "billing block" detail grounds it as a real film asset rather than generic sci-fi art.
The Sale Flyer (Retail)
Drive urgency with bold retail design.
Create a retail sale flyer for a clothing store. - **Headline**: "SUMMER SALE" in massive bold red letters - **Subtext**: "50% OFF" in a yellow circle badge - **Visual**: Stylish models wearing summer clothes, smiling - **Background**: Bright yellow or white high-key background - **Vibe**: Urgent, exciting, commercial
Key Detail: Red and yellow are the urgency colors—they trigger attention and excitement instantly. The "massive bold letters" and "high-key bright background" create maximum contrast so the sale message is impossible to miss. The "yellow circle badge" for "50% OFF" acts as a visual accent that directs attention to the discount, a common retail design pattern.
The Vintage Jazz Festival
Sophisticated and nostalgic.
Generate a vintage-style concert poster for a jazz festival. Content: - **Title**: "MIDNIGHT JAZZ" in bold Art Deco typography at the top - **Subtext**: "Central Park - July 15th" at the bottom - **Imagery**: Silhouette of a saxophone player against a giant full moon Style: - **Aesthetic**: 1920s poster art, textured paper - **Colors**: Muted gold, deep midnight blue, and cream - **Vibe**: Sophisticated, nostalgic, moody
Key Detail: Art Deco typography instantly signals "1920s elegance." The muted color palette (gold, midnight blue, cream) creates sophisticated restraint—avoiding neon brightness that would feel modern. The silhouette of the saxophone player against the full moon is iconic and timeless, while the "textured paper" instruction grounds it in historical authenticity rather than a digital design.
Troubleshooting
Next Steps
- Typography: Focus purely on the art of letters.
- Infographics & Diagrams: Add data visualization to your promotional materials.
- Mockups: Put your new poster design onto a real wall.
- Mockup Collections: Create a complete suite of promotional materials.
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