Bruce has a lifetime of slides that he's scanning to his Mac. He uses the info file comments for key details, but he can't share those with his son. Leo says that's because those comments are only for his Mac. What Bruce needs to do is use the EXIF field in the photo file itself. It provides details like date, time, camera settings, GPS, etc. So what Bruce needs to do is use Apple Photos to do it, but you can also use the Preview. Click on CMD + I for that photo to open the Inspector. Then look for the annotations icon (a pen), and you can put the data there.
James is looking for an app that will help him to edit the metadata that is in his still images. He wants one that will allow him to put in a description and then search for keywords. Leo says that all photos have extended information tags, or "EXIF" data. There's also a standard called IPTC that does titles and descriptions. So it can be done. Most photo library programs, like Adobe Lightroom will do it. There's a free one called Photo Me.
Sal wants to move data over to an external drive, but when he does, it changes the created date to the date he transfers the data over. How can he avoid that? Leo says that Windows copy is notoriously bad on that. Use a different copy app like RoboCopy. But for photos, most cameras store the date an image was taken in its EXIF data.
When Robert backs up his photos to Google Drive, it seems to strip out the GPS location EXIF data. Leo says that Google Drive won't show the EXIF data, but it is still there. He just searched his own photos and discovered it. It's probably a display settings issue. He also sees the EXIF data available in Google Photos. Google probably wants him to upload to Google Photos instead of Drive.