Make it yours
Make the front of your 6×9 postcard with an image tool you already know. Download the artwork, upload it into your postcard, and finish the back in My Letter Manager.
The print canvas
Front only · landscape
A simple handoff
Use an image tool or editor outside My Letter Manager. Start with a prompt below, or bring artwork you already have.
Save the original image to your device. In the postcard flow, upload it as the front image and write your message on the back.
Choose your audience, preview both sides, check the charge, and explicitly approve the final mailing.
In the composer, choose 6×9 yourself. The ordinary postcard composer may start at 4×6; entering this guide does not select a size for you.
Your tools, your account
These are external services. You’ll use your own account; each provider may have separate costs, limits, and changing names or controls. Check its current terms before you begin. There is no automatic generation here and no AI charge from this guide.
Describe the business, nearby customer, offer, and art direction. Ask for one image at a time, then make focused changes such as “simplify the background” or “leave more open space at the top.”
Generated lettering can be unreliable. If words or a logo are not exact, ask for a clean image without text and add editable text and your real logo in Canva or Adobe Express.
Gemini’s official image-generation page confirms Nano Banana image generation. Start with a clear visual brief, then iterate one change at a time and compare versions.
If the image contains misspelled copy or an inaccurate logo, remove that lettering and finish the wording and genuine logo as editable elements in Canva or Adobe Express.
Canva’s official image-generator page offers aspect-ratio selection. Choose the closest landscape ratio available; it may not offer the exact print canvas or safe-area controls.
Use the generated art as a background, then add your own editable headline, offer, contact details, and uploaded logo in Canva. Check every word and keep key content inside the safe area.
Create or place an image in an Adobe Express design, then use editable text and your uploaded logo for accurate business details. Tool names and controls can change.
Treat generated text as a draft, not verified copy. Replace inaccurate lettering with editable text and use your actual logo file; review the result at full size before export.
Copy, replace, create
Replace the bracketed details with your own. Prompts stay visible and selectable if clipboard access is blocked. Every prompt includes the print canvas, safe area, bleed, and a reminder that image tools may not output exact print dimensions.
complete neighborhood ad
Ask for one polished front design with your real offer and contact details.
image only background
Create artwork first, then add all accurate copy and your logo in an editor.
local offer alternative
Try a separate concept for a shop, studio, or appointment-based business.
refine and export
Use after choosing a draft to request a focused revision and a clean source file.
Before you upload
Image generators may not offer the exact dimensions. Ask for the highest available near-3:2 landscape output, then use an editor to crop or fit it to the exact canvas without stretching. Inspect details at full size.
Changing DPI metadata alone or enlarging a tiny image does not create more detail. Save the original PNG or a high-quality JPEG—not a screenshot, watermarked preview, or PDF.
Continue color and imagery all the way to the outer 2738 × 1838 px image edges. The cut happens inside that edge.
Place words, your real logo, and contact details inside the 2658 × 1758 px safe area, inset 40px horizontally and 40px vertically from the outer image edges.
No address, stamp, mail indicia, fake QR code, crop marks, bleed guides, or postcard mockup. The app handles the mailing back; if you want a QR code, use the app-generated option later.
Review spelling, phone number, URL, lawful offer terms, and image/logo rights. Never invent claims, reviews, or discounts.
When your art is ready
The image tool creates artwork only. Your recipients and mailing are handled in My Letter Manager, not in an external AI prompt.
STEP 01
Choose Create a postcard to open the postcard flow.
STEP 02
Choose “Start from scratch” in the gallery.
STEP 03
Select ordinary 6×9 and use “Upload Image” for your front artwork.
STEP 04
Add your back message and imported audience tag, then preview the postcard.
STEP 05
Review the final mailing charge and explicitly approve it only when everything looks right.
Keep recipient information private. Do not submit recipient addresses or lists to external AI tools. Add your audience only in the postcard workflow.
No rush. Review first.
Upload the front, finish your back, preview everything, and decide whether to mail.