I am wondering what app to use to store and post photos so that both Mac and Microsoft users can both look at the image and see comments/metadata I have attached to them. For instance, comments I have made defining who someone is in the family line (genealogy), or the occasion that I took a photo (mother's 103rd birthday), or where my wife and I are standing in front of some geological feature. I just now discovered that sending a Windows user an annotated photo straight off my Photos app didn't accomplish the transfer of any metadata. Now to my question here, which forum do I use to address this topic? Apps, Digital Photos, or what? Thank you.