I know this one seems to have been done to death, but many people still seem to have a problem with reducing jpeg files, and I put it this way because most imaging software only concerns itself with the dimensions of the picture and the filesize is not addressed primarily.
Of course both are proportionally related and usually, we are more cocerned about the filesize, for e-mailing and for uploading onto ThinkCamera, generally both would require something under 250KB files.
Nobody seems to have mentioned "Paint" which as far as I know, is free with all Microsoft operating platforms, certainly this is the case with Windows 95, XP and Vista.
To resize in Paint, I suggest you have your picture folder set to "details" on the "view" option, then right click on the file you want to resize, select "open with" and look for "paint".
This programme opens the photo full size, showing a scrollable image starting in the top left corner of the photo. Select "image" on the top line menu and then select "resize/skew".
The window now will show the horizontal and the vertical each at 100% (full size), be sure that you enter the same number in both horizontal & Vertical otherwise the photo will be stretched vertically or horizontally (unless of course that's what you want to do).
Now this is the "trial and error" part. Because the window doesn't show the filesize, you won't have any idea what pecentages of the original size to enter.
As an example, a 3MB jpeg reduced by 50% (picture dimensions) might return a file of 1,250KB.
Likewise if you start with a file of 1,250KB then 50% may return a file of 350KB.
Like I said, It's trial and error, but I suggest that you copy the picture folder before you start, then all photos will be safeguarded against loss. After reducing the size, select "file" "save as" and rename the file, otherwise you will overwrite the original.
Because you are viewing in 'details' you can see the filesize of the new file, if it's still too big then go through the process again, but choose a percentage higher this time, the closer to the desired filesize you get, the nearer to 100 % you should be resizing to. By renaming the file, best to use a suffix a, b, c etc., you will always have the previous filesize achieved, then if you go too small, you can always re-open one of the larger files. Once too small, you can't go bigger, the resize option does not allow more than 100% to be entered.
It's actually very simple, but sounds complex to explain in text!
My question is, out of all the professional software on the market, and I'm sure that between them ThinkCamera users have tried them all, is there one that allows you to set the filesize, and maintain the aspect ratio of the picture, as opposed to working the other way around on the picture and guessing the resulting filesize? This would save all the trial and error, I've looked at Picasa and PhotoFiltre and they seem to be similar to Paint.
I'm interested in any answers.......... 
