Before you go to upload your logo/image, please read our image recommendations below:
We recommend uploading an image with a high resolution and high DPI (300 px). For example, if your logo appears as a 150x150 image in the signature, then a 450x450 image must be uploaded. Advisable PNG format. The size should be up to 50kb.
Then please follow these steps:
In the Dashboard, hover over your signature, click Preview and install, then click Back to editor to update your signature with your logo/image.
When you are in the Signature editor, find the Images tab on the left side of the page.
Next, upload your image by clicking Choose file button.
In the new window, choose the image size and radius (there, you can give the round form to your photo/logo), then click Apply to save changes.
Choose image width by moving the image width scrolling tab, then add the link for your image. Next, click Save signature to save all updates.