In case it helps anyone, what with the comments on the GOTD download page seeming to run the gamut from terrible to near brilliant... Light Developer is a capable, fairly easy to use image editing app targeting the casual home or biz user. It's not the easiest by far in terms of wizards or contextual help or even just hand-holding in general, nor is it more cryptic [e.g. The GIMP] nor overwhelming [e.g. perhaps Paintshop Pro]. You can change the language to English or German -- a plus for many. I've said often enough that I try to stay away from image editing apps that don't let you use layers or similar, which Light Developer doesn't, but for quick processing, assuming you like the software & its interface, you should be fine.
Some folks complain about Light Developer's price, but especially for graphics & image editing software, I'm not sure that's relevant... if you don't have or don't want to pay any money, there are free alternatives that can & will do just fine [e.g. The GIMP], so paid programs to work with images are more a matter of what you can justify, what you want to pay for what's essentially a luxury. Loads of people do buy Photoshop, have bought full versions of the software in the past who are not pros, who didn't really have a good reason to pay that price or learn the software, but they wanted Photoshop because they heard it was the best -- so many people did buy P/Shop that Photoshopping an image has become part of common language [maybe ironically, often referring to low quality work]. Yet buying/using P/Shop in & of itself is hardly bad -- when people call it overkill [as I saw in the comments] I have to wonder what they have that's more than necessary?... we often drive when we should walk, have more car or truck than we need, have more powerful PCs/laptops than the bare minimum etc., so as long as it doesn't negatively effect everyone else, it's none of my business what anyone spends or how they spend it.
Software for working with images may have one or a few tricks specific to that software [e.g. Inpaint], but for the most part everything you need has been thought of, developed, & copied by other apps numerous times. And unless you're talking about some automated process [e.g. image optimization], you most likely won't see a difference if/when you perform the same editing in brand A or brand Z. Therefor you'll see a bit of hype, often with old tools called new names, & sometimes a new approach to the interface you use applying those tools -- a decent example is Light Developer's HSB curves http://www.stepok.com/Features/hsbcurve.htm ... they jump to the HSB color model, which itself makes a difference [good & bad], then try to simplify the interface [here's an example of the more traditional http://www.photoshopcafe.com/tutorials/curves/photoshop-curves.htm ]. IMHO Light Developer's HSB Curves aren't so much better/worse as they are just different -- if you like it better cool, but the world won't end if you don't. :)
The good news is Light Developer is a pretty light weight install, so you shouldn't be afraid of giving it a try. The GOTD is just the 32 bit version, it looks like with registration checking disabled, so you won't be able to update, add the 64 bit version etc. Installation adds a folder under Program Files [32 bit Windows] or Program Files (x86) [64 bit Windows], with a 2nd folder added to UserName\ Application Data [XP] or User\ UserName\ AppData\ Roaming . The registry gets two sparsely populated software keys, + 1 more for uninstall.