Why do signature images look blurry on some screens?
Images in a MySignature email signature can appear blurry or fuzzy on certain displays when the uploaded image size is either too small or too large relative to how it is rendered in your signature.
To prevent scaling distortion and maintain crisp rendering across screens, prepare your image file using higher resolution and clean, round pixel dimensions before uploading it to your MySignature signature.
What image resolution, dimensions, and format should I use?
To keep images in your MySignature email signature sharp and clear, follow these image preparation guidelines:
Resolution scaling: Keep the uploaded image resolution at least 2x higher than the image's display size in the signature itself (or upload a higher-resolution version, such as uploading a 450x450 pixel image when your logo displays at 150x150 pixels in the signature).
Divisible round dimensions: Make sure the image's pixel resolution is divisible by 2, 5, and 10 - for example, 200x200 pixels or other round numbers.
High DPI: Upload a high-quality, high-resolution image with a DPI of 300.
File format: Save and upload your signature image in PNG format.
Need additional help?
If you have other questions, explore our Knowledge Base for more articles, or contact our Support Team via live chat or email.