How can I reduce digital photo sizes?

There are dozens of programs available that will do this. What type of PC do you have and how old is it? There is probably a program there already.

Note: reduce a copy or you will lose your original photo.

For me, it's "GraphicConverter" and the function is picture>size>scale

I have a Windows Explorer substitute called Directory Opus from a company in Australia. It a great product for many reasons. One of them is if you do Horizontal directories it splits the screen so you can choose 2 different directories. You choose the source directory where the pictures are and then you make a destination directory on the other split. Go back to the source directory choose the pictures and right click and choose convert, choose the resolutions you want or customize. Then check send to destination directory and click okay. All the pictures you selected will be copied in the converted format to the destination directory. This is only one of the many things it can do. Pricey but worth it.

In a photo imaging program like PhotShop it is easy. Click on IMAGE then IMAGE SIZE. You can then change the resolution from say the 300 pixels per inch that it is showing to another smaller number like 75 pixels per inch just by typing the 75 in the resolution box that had 300. Look at the top of the box and it will tell you the total pixels. If you don't like the number you can go to a lower resolution or to a smaller height or width.

ACDSee is a great application to visualize and print photos in a fast way.

I found a free download of ACDSee here http://bit.ly/1nsjuVW

Set size of picture. Number of pictures which can be recorded depends on this setting

and on ‘QUALITY’ (P.70 of your manual)

I use ACDSee Pro