We recommend the use of PNG, JPG and JPEG images.
Image file size
The maximum file size allowed for uploaded images is 150kb (there are not restrictions in respect of image dimensions).
The maximum dimensions for an image are 2048 pixels by 2048 pixels.
When an image is uploaded, it is:
- Automatically converted to 24bit PNG format.
- Resized to maintain the signature's aspect ratio.
Image screen resolution
We recommend that any email signature images you use are 96 dots per inch (dpi).