Tips on optimal image specifications (specs) for logos, banners, featured and inline images.
Adding your own images is a great way to bring your brand and personality into your newsletters. Of course, you always have the Axios Visuals library, Unsplash Stock Photo library, and the AI image generator at your disposal, but here are our optimal import specs for your banners, logos, and image uploads.
Table of Contents:
1. Wide Logo
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We recommend a 4:1 ratio for all wide logo uploads. These are added on the Settings tab for each newsletter series in the Newsletter Design section.
Optimal Specs:
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800×200 px
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72 ppi
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PNG file type
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Less than 1 MB
Acceptable Specs:
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400×100 px — a smaller file size and lower quality when zoomed in
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1600×400 px — a larger file size and higher quality when zoomed in
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JPG file type
2. Square Logo
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We recommend a 1:1 ratio for all square logo uploads. These are added on the Settings tab for each newsletter series in the Newsletter Design section.
Optimal Specs:
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800×800 px
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72 ppi
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PNG file type
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Less than 1 MB
Acceptable Specs:
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400×400 px — a smaller file size and lower quality when zoomed in
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1600×1600 px — a larger file size and higher quality when zoomed in
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JPG file type
3. Banner
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Banners must have an exact 4:1 aspect ratio and be less than 2.5 MB in file size. These are added on the Settings tab for each newsletter series in the Newsletter Design section.
Optimal Specs:
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2400×600 px
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72 ppi
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PNG file type
Acceptable Specs:
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1600×400 px
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800×200 px — a smaller file size and lower quality when zoomed in
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JPG file type
Troubleshooting: If you receive an error indicating the size of your banner is incorrect, double check the dimensions of your saved image by opening it in your computer (separate from HQ) and looking at the properties.
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On a Mac, click the Inspector button on the toolbar to pull up General Info and find the Image Size.
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On a PC, right click your image and select Properties. In the window that opens, navigate to the Details tab to find the Dimensions.
Occasionally, an image will save one pixel over or under the necessary spec. This can be fixed by adjusting your image settings when saving the image, or compensating for the discrepancy by intentionally adding or removing a pixel at the time of the save!
4. Featured Image
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Featured images are uploaded within the editor for each card, immediately following your card headline and above your content. These span the full width of your card and newsletter and are a great way to break up large blocks of text. These can also be saved to your Uploads tab to be accessed again later by checking the “Save to Uploads” box on your upload screen.
We recommend a 5:3 aspect ratio for featured images. For a thinner, banner-like image, we recommend using an 8:1 aspect ratio.
Optimal Specs:
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1000×600 px
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72 ppi
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PNG file type
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Less than 1 MB
GIF and JPG file types will also work. For every featured image, keep in mind the following resolution guidelines:
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Minimum 72 ppi
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Maximum 300 ppi
5. Inline Image
For inline images, any ratio or dimension will work, and you can resize and center-align them in the body of each card. Inline images are also a great way to add multiple images per card.
Optimal Specs:
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PNG file type
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Minimum resolution 72 ppi
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Maximum resolution 300 ppi
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Less than 1 MB
GIF and JPG file types will also work.
6. Image Collage
You can create an image collage and use it as the featured image or include it within the text of a card. You have two image collage options to choose from: side by side or a 2x2 grid.
Image dimensions:
- For the side by side, aim for 296px by 296px or a 1:1 width-to-height ratio.
- For the 2x2 grid, aim for 298px by 170px or a 7:4 width-to-height ratio.
Pro-tip: Use the cropping tool to resize your image to 1:1 or 7:4 ratio. (See gif above)