Basic image editing for the CMS comes under 2 headings:
Basic image editing tools are pre-installed on all Mac and Windows computers:
Super Easy Editing: picnik.com
The free site http://www.picnik.com provides easy access to the most common photo editing tools, making it extremely easy to Resize, Crop, Color and otherwise edit images.
Resizing generally means scaling an image to a smaller visual size (and, by association, a smaller file size). In the CMS, this is usually done to fit a particular region on the page (such as for ?Slideshow Slides), as well as to avoid extremely large images which would increase page load times.
Cropping is cutting off parts of an image to fit pre-defined dimensions.The following table shows a full image and a cropped version.
In some cases, such as Slideshow Slides, images are both resized (to fit a minimum or maximum width or height) and cropped (to make sure the final dimensions are exact).
Apple's Preview program (on your computer at Macintosh HD -> Applications -> Preview) is a simple, but very capable program for not only viewing files, but for performing some basic graphic editing, too. A good help link from Apple is at:
On this page, under the "Viewing and working with images" section:
You'll find instructions for resizing and cropping a graphic file entitled "Resize an image" and "Crop an image" under the "If you want to - Do this in Preview" table.
If you have Microsoft Office 97-XP, the Microsoft Photo Editor provides a functional, if not user-friendly interface. The link below details each of the functions of the tool, including cropping and resizing:
If you have MS Office 2003 or newer, Photo Editor has been replaced with Picture Editor. The link below provides instruction for this tool:
Finally, MS Paint comes with all versions of Windows. The most recent version is documented here: