Unfortunately, the web-site development tools don't include a photo editing facility, so you will need to resize and add drop-shadows, as required BEFORE you up-load the image. Fortunately, this is very straightforward, using on-line or free to download editing packages. I would suggest pixlr.com for the on-line option, or for a very much more sophisticated package gimp.com, which is free to download.
Pixlr is reasonably intuitive, but Gimp has a steep learning curve. Fortunately, both Pixlr and Gimp are well served by Youtube tutorials. The basics like image resizing should be intuitive, but drop-shadows are more complicated. This is where Youtube comes to the rescue; however, you may find the tutorial assumes knowledge you don't have initially. So you will need to work through a number of basis beginner tutorials before getting it right. Don't give up it's great fun, and will finally, give you a great sense of achievement.
Thank you very much Allen
I hope your reply to Allen was helpful. However, I am now in the process of re-sizing some photo's in Gimp to insert to my E-Voice web pages. Could you tell me what size - width & Height (Pixels) I need to create a picture that goes across each web page and about 3 - 4 inches deep? I am using the Modern Theme.