Crop for Large Mobile Banner ad (320×100)
Bring your image to the GDN Large Mobile Banner size: exactly 320×100 pixels. With extreme aspect ratios, fit mode with a blurred background often gives the better result.
Your file stays on your device · nothing is uploaded
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Promo kit: images and QR code to post or print
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The 320×100 format at a glance
The Large Mobile Banner at 320×100 pixels is made for smartphones and is twice as tall as the standard mobile banner. It gives you more room for image and message on small screens.
What it's good for
- Mobile ads with a bit more image space
- Call-to-action banners at the top or bottom edge
- A mobile complement to desktop formats
Common mistakes
- Planning the format for desktop instead of mobile
- Using text too small for small screens
- Designing the image and button without clear contrast
How it works
- 1 Drag your image into the box or choose it: JPG, PNG, WebP and other common formats.
- 2 Move and resize the frame until the crop fits. The aspect ratio 16:5 is fixed, and “Auto-center” finds the subject on its own.
- 3 Choose the file format (JPG, PNG or WebP) and the quality if needed.
- 4 Download the image at exactly 320×100 pixels, ready to upload.
Frequently asked questions
What size is the Large Mobile Banner ad banner?
The recommended size is 320×100 pixels with an aspect ratio of 16:5. Your image is downloaded at exactly this size.
Will my image be distorted?
No. The aspect ratio is fixed, you only choose the crop. If your subject doesn't fit the format at all, “Fit” places the whole image inside and fills the edges with a blurred version of the image.
Do location and camera data stay in the image?
No. When saving, metadata such as EXIF, GPS location and camera info is removed automatically. That protects you when you share images publicly.
Are my images uploaded?
No. With this tool, your image never leaves your device.
Is the tool free?
Yes, with no sign-up, no installation and no watermark from us.
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