This may have been covered before...
To reduce or edit any image, you can download something called GIMP which is free to use.
It is like Photoshop (TM) ($$$$$$$$$$$) in that it has way more features than you can use if you're like me,
but you can easily resize any image.
The original size of your image is 2560 x 1440.
To scale the image, open the file with GIMP, pick IMAGE then SCALE IMAGE,
make sure the chain icon is connected (you'll see it to the right of the width and height)
(you can click on it, on is connected chain the other is broken chain, you want width and height to remain the same aspect ratio)
then type in the width or height or use the up/down and then select SCALE.
You then select FILE then EXPORT to overwrite the image or EXPORT TO to write to a new filename.
I didn't find a way to reduce the size of the photos.
I belong to a few more forums and this is the only one I have had problems uploading photos.
One of them I can upload them right out of an album on my computer directly to the forum with no size problems.
I'll have to figure something out or stop posting photos.
I'll try some of these options.
Right now I am leaving to pick up a rental car.
We are leaving tomorrow for National bowling tournament in Syracuse, NY.
3 to 4 days on the road.
Will have to do this when we get back or if I time to try it on a laptop.