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AI Image Generator Custom Size

Generate images at your chosen dimensions with an AI image generator custom size tool: describe the visual, pick settings including aspect ratio, and download.

AI Image Generator

0/20000 characters
Cost:10
Strictly Prohibits Adult/NSFW Content
My images

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How do I generate images at a specific size?

Describe the image you want in text, choose the aspect ratio or dimension setting available in the generation tool, then generate and download the result. The tool creates visuals sized for web banners, social posts, print layouts, or any format you need without manual cropping afterward.

AI Image Generator Custom Size

Wide hero banner

Input

Create a wide banner image sized for a website hero section

Expected output

A visual matching the image description with proper composition and lighting

Square social post

Input

Generate a square profile picture with specific dimensions

Expected output

An image reflecting the described scene with appropriate style and color palette

Tall mobile story

Input

Produce a tall vertical image for mobile story content

Expected output

A visually coherent result based on the text prompt with clear subject and background

Generate images at specific dimensions for web, social, print, or any platform with custom aspect ratio needs

Exact dimensions for your use case

Set the aspect ratio or size needed for your specific platform, eliminating guesswork and post-generation cropping.

No manual resizing

The tool generates at the chosen dimensions from the start, so you can download and use the result immediately.

Works across formats

Generate images for web banners, social posts, print layouts, or mobile screens from a single workflow.

How It Works

1

Describe Your Image

Describe the desired image.

2

Adjust Settings

Choose the available generation settings.

3

Generate and Download

Generate, review, and download a suitable result.

Tips for Great Results

Follow these guidelines to get the best possible images from your prompts.

Input Constraints

  • Keep descriptions focused on the main subject and setting
  • Avoid requesting real people, copyrighted characters, or private content
  • Specify the mood, lighting, or artistic style you want

Practical Tips

  • Use descriptive adjectives for better results
  • Include references to art styles or photographic techniques
  • Mention lighting direction and color temperature for realistic images
  • Start simple and add details gradually
  • Try multiple variations of the same prompt

Privacy

  • Do not upload personal or sensitive material unless you have permission to use it.

Usage Rights

  • Confirm that you have the rights needed for the inputs and intended use of the result.

Prompt recipes

Copy a structure, then adjust the subject, lighting, camera, and output details for your own result.

Wide website hero for a SaaS landing page

A clean hero image for a productivity app website, wide 16:9 format, desk workspace with laptop and coffee, soft natural window light from left, minimal modern aesthetic, professional photography style

Specifies the wide format need, describes the subject and lighting clearly, and names a visual style to match typical landing page design.

Square Instagram post for a recipe

A square 1:1 overhead shot of a colorful salad bowl on a marble counter, vibrant greens and reds, soft diffused top-down lighting, clean food photography style for social media

Calls out the square format explicitly, uses a common social media composition (overhead), and includes color and lighting details for visual appeal.

Tall vertical story for mobile

A tall 9:16 portrait of a hiking trail winding through autumn forest, golden leaves, vertical composition with path leading into distance, warm afternoon light, immersive outdoor photography

Mentions the tall vertical format for mobile stories, describes a natural vertical flow in the composition, and sets the mood with seasonal and lighting cues.

Print poster in portrait orientation

A tall portrait-format poster for a jazz concert, vintage 1960s graphic design style, bold typography with a silhouette of a saxophone player, warm orange and deep blue tones, high contrast for print

Specifies portrait orientation for a poster, names a distinct visual era and style, and mentions print-ready contrast for clarity at large sizes.

Horizontal banner for email header

A wide horizontal banner showing a mountain sunrise, wide 3:1 aspect ratio, soft pastel sky with orange and pink, calm lake reflection in foreground, minimalist landscape for email header use

Calls out the very wide aspect ratio common in email headers, describes a simple composition that works at small heights, and emphasizes a calm mood suitable for branding.

Best use cases

Match the workflow to the input you have and the result you need before opening the generator.

Website hero section

Input: Wide landscape scene or workspace, 16:9 or 21:9 aspect ratio

Result: Banner-ready image with horizontal composition

Tool: Text to Image with custom size setting

Social media post

Input: Square or vertical subject, 1:1 or 4:5 aspect ratio

Result: Platform-optimized image with no cropping needed

Tool: Text to Image with custom size setting

Mobile story or reel

Input: Tall vertical composition, 9:16 aspect ratio

Result: Full-screen mobile image with natural vertical flow

Tool: Text to Image with custom size setting

Print poster or flyer

Input: Portrait or landscape layout, high-contrast details

Result: Print-ready image at chosen dimensions

Tool: Text to Image with custom size setting

Limitations to know before generating

  • The tool generates at the chosen aspect ratio, but extreme or unusual ratios may affect composition quality.
  • Generated images interpret your text prompt; review the result to confirm it matches your vision and fits the intended use.
  • Custom size settings are chosen from available options in the tool; exact pixel dimensions may not be directly selectable.
  • Highly detailed prompts may not render perfectly at very small or very large sizes; test the result at the intended display size.

Creative Suite: AI Video Generator & AI Image Generator Tools

Power up your creative workflow with our AI-driven tools. Generate stunning videos, create images, and apply custom adjustments - our AI Video Generator and AI Image Generator offer a complete solution for all your creative needs.

Strictly Prohibits Adult/NSFW Content

Pricing

Choose the credit package that works best for you.

No hidden fees • Cancel anytime • Unused credits roll over

Starter

Perfect for trying out AI creation.

Credits

2,400 credits per year

  • Up to 20 videos per month
  • Up to 100 images per month
$5.00/ month$9.9950% OFF

$59.99/year billed yearly

You save $60 · the equivalent of 6 months free

Basic

Perfect for light creators.

Credits

6,000 credits per year

  • Up to 50 videos per month
  • Up to 250 images per month
$10.00/ month$19.9950% OFF

$119.99/year billed yearly

You save $120 · the equivalent of 6 months free

Pro

Popular

Best value for creators.

Credits

14,400 credits per year

  • Up to 120 videos per month
  • Up to 600 images per month
$33.33/ month$39.992 Months Free

$399.99/year billed yearly.

Save $80 compared to monthly

Ultra

For video creators and power users.

Credits

60,000 credits per year

  • Up to 500 videos per month
  • Up to 2,500 images per month
$83.33/ month$99.992 Months Free

$999.99/year billed yearly.

Save $200 compared to monthly

Questions? Contact us at support@domer.io




Generate Your Custom Size Image Now

Open the tool, describe your image, choose the aspect ratio or size setting you need, and download a result ready for your platform.