Hi @Miriah Botha ,
As I know, we could create signature with picture On Outlook Desktop client, but it is not feasible in the Outlook for IOS. I also did lots of research about your issue and found a method that might be useful, it's suggested to use third party tools or create own HTML codes manually and paste the codes in Outlook for IOS to check if it is effective.
Due to here we mainly focus on general issues about Outlook desktop client and we may know little about Outlook for IOS, if that couldn't meet your need or you still want to know more about how to create signature with picture in Outlook for IOS, please try to research or post a new thread on this forum:
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thanks for your understanding and hope your question will be resolved soon.
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.