I am working on a webmap and would like to use a custom graphic JPG for the icon, rather than a available options. I have run into this issue before, as the add image dialog box asks for a URL rather than uploading from my computer. Additionally, I would like to use photos from my computer for some more expressive pop-ups but that requires the same URL.
Is there an esri help topic that explains the work flow to add these photos. I have read that photos can be imported from Flickr or Facebook but I do not see a raw file format ending in JPG as the dialog box suggests.