I recently noted the image-editing functionality of Preview.app, which can act as a "good enough" image editor for many that don't have access to Photoshop. While it's difficult to argue with the free price tag, Preview is not without its limitations. Fortunately, many of these limitations are unlocked if you happen to own Apple's iWork suite, which in its own right can serve as an image editor for the budget-minded.Read on to see how to use iWork in this unconventional way.

Inspired by Bear Grylls's (of Discovery's Man vs. Wild) "make the most out of your situation" scenarios, I present you with a tutorial for making the most out of Preview.app. While not as powerful as graphics editing powerhouse Adobe Photoshop, Preview can oftentimes get you from Point A to Point B -- and sometimes quicker too.

Like Bear Grylls, you'll need to parachute out of a plane and into the house of a friend who doesn't have Photoshop -- just kidding.

First, a little bit of background. Preview comes pre-installed on Mac OS X, and it's the default image viewer on the system. For PC-to-Mac converts, you could think of it as the Microsoft Paint of OS X; except that it can do a whole lot more. Besides the ability to open a host of image file formats (JPG, BMP, GIF, among them, and even PSD and AI files), Preview can also open PDF files natively. I actually prefer it over Adobe Acrobat for opening PDFs, as I find that they open much quicker using Preview. And like Adobe Reader, Preview contains advanced features, such as annotating.

• Enhance photos with color adjustment and sharpen tools
• Crop and straighten photos
• Add text balloons
• Create a variety of frames
• Adjust Histogram
• Correct Gamma
• Increase/decrease saturation
• Adjust color temperature
• Multiple undo and redo

• Dutch localization
• "Send to folder" option
• Command-S keyboard shortcut for "Save" (YES! This has been Command-Shift-S for too long!)