Here is the crux of my difficulties.
I use a MacBook, a Panasonic point-and-shoot camera, and have an iPhone 6 which is synced to the MacBook.
Puzzle Forum only accepts photo files of 1mb or less, an unusually small file size for 2017.
On my MacBook, the operating system changed since last year. Now iPhoto has become Photos, with different features.
With the old iPhoto, I would import the photos from my camera, then export them to Desktop as a jpeg file. During the export step, I could choose a file size of 'small,' 'medium' or 'large.' By choosing either 'small' or 'medium' I could then export files to the desktop that would need no further changes. But in Photos, there is no option to choose file size when exporting. The only way I can see to change the file size is, opening each jpeg file on the desktop, and using Tools > then manually changing the resolution. Perhaps this is the only way.
On my camera, I can manually adjust the size of the photo files, but unfortunately in the smaller sizes my only option is 0.3 mp. The next possible size is 5mp, much too large. Perhaps 0.3 mp is the best option.
According to my research, it is impossible on an iPhone 6 to adjust the file size at all on the camera itself. So those files are also needing to be reduced, in the same way.
Th uploading procedure on this site seems to also have changed. I remember putting the photos in brackets and cutting and pasting into the space. The upload step seemed more automatic now but I could not figure out how to get the cursor to allow me to write text, in between the photos.