I know how to add an image to my Gmail signature, but unless I'm mistaken, this image will not be included as an attachment and thus has to be externally hosted. Newer mail clients don't load external images by default, so my company would like everyone to use inline images. For those of us that use Gmail as God intended, in a Chrome browser, and not via Outlook, how can we create a signature that includes an inline image?
You can keep a draft ready with the signature to be used as a template every time you want to send a message (time consuming). Wisestamp will also use external hosted images (feature already in Gmail).
Considering all this, using a mail client is the only option if you want to use inline images in signature.
According to multiple sources, it is impossible to use inline images with the Gmail signature feature.
Gmail doesn’t support uploading images for signatures in the traditional manner. Therefore, you’ll have to link to a public image on the web.
Now, importantly, you can't just upload an image straight from your computer to Google, they won't host the image for you, so we need to actually host the image on an external site.
So in other words, Gmail does not allow inline images in the email signature feature. The only workaround is to keep a draft with your inline-image email signature in it, or to use a third-party Gmail extension to manage your inline-image signature.
You should try WiseStamp.
I know that, when you have an account, you can add image to your signature, but I cannot confirm whether is inline or online.