Once you've added an image to your email, you can proportionally increase or decrease the size by hand to set how you want it to look when your email is viewed on a desktop, or you can set a specific width and choose whether you want it to span the full width of the screen when the email is viewed on a mobile device.
Learn more about ideal image size: If you upload a low-resolution image and make it bigger in your email, it will appear blurry. Very large images may load more slowly when a contact views your email, even if they are resized to be smaller. To prevent these issues, see our guide on preparing images for upload, which includes tips on optimal image size and resolution.
Resize an image by hand or by adjusting the dimensions
To resize an image by hand:
Place your cursor over the image and click the arrows in the lower right-hand corner. Click and drag the corner out to increase the image size and in to decrease it.
Tip: If you want the image to span the full width of the template, you may need to remove extra padding around the image.
To adjust the image dimensions:
- Click on the image within your email template.
- Within the panel on the left, locate the Size section. Adjust the image width by entering a value or using the plus and minus signs. The height will change proportionally. An image width of 150–250 pixels will take up a third to a half of the mobile screen width.
Note: When increasing the size of an image, it cannot be stretched beyond the width of the layout block it's in.
Set an image to display as full-width on a mobile device
Within the image block panel, click the Full-width on mobile toggle if you want the image to span the full width of the screen when viewed on a mobile device.
Tip: For small graphics, icons, etc., keep this toggle off to prevent unintended stretching that can make the image appear skewed.
The following examples demonstrate how the "Full-width on mobile" toggle can affect how the image is displayed. Make sure to preview your email to see how this setting affects images in your own email.
- When the "Full-width on mobile" toggle is turned on, the image fills the width of the mobile device screen.
- When the "Full-width on mobile" toggle is turned off, the image maintains its dimensions and doesn't span the width of the mobile screen
Padding, cropping, and additional image design tips
- Padding and margins - Around each image is padding (the space between the image and the inside of its border) and margins (the space between the outside of the border and the image block). Get rid of extra white space around your image by removing the image padding and margins.
- Cropping - If your image isn't looking quite the way you want, try cropping it.
- Border - Frame an image with a border or frame to make it stand out.
- Image editing - Looking to make changes to the image itself? Learn how to use the image editor.
- Background -The background color of the image block can be changed, giving you additional styling options.
Preview how your image will display on desktop and mobile
Preview your email to make sure the image looks the way you want on both desktop and mobile:
- Click Preview & Test > Preview.
- Click the Desktop and Mobile tabs to ensure your images look the way you'd like on each device.
Troubleshooting tips:
- Image looks cut off on mobile? Ensure it isn't placed inside a restricted multi-column block.
- Changes aren't saving? Make sure you click outside the image setting panel to apply the pixel adjustments before previewing.