Why do you need to look for others when you've already had free, capable application shipped along with your Leopard?
Some of the readers might have known that I like to find an image before starting my tutorial. Here is the chosen one :
With Preview alone, you can do the most basic image editing, such as Extract Shape.
If your image is in the form image type file, i.e. JPEG, GIF, PNG, etc, you can highlight the file and then choose Open With ▸ Preview (if Preview hasn't been set as your default application) or simply use 
A
However, if you want to pick your image from existing Application's icon, you can do these steps :
C)N)I picked : MacBook Air which I just captured from Apple.
Mac, you're my Valentine..
Valentine, the day full of love and joy, won't be perfect without the existence of your Mac in your life. I think this should be the answer you can get from Mac fanboy-fangirl. You can also find several interesting, creative ideas and modifications on their Apple, themed "Pink Valentine".
Let's see what are those hot pink products.
If you've ever noticed, you would find out that some of the Desktop Pictures provided inside your Mac have relatively small size and dimension that can fill the whole of your widescreen. This is because those background images can be tiled when it's being set as Desktop Background.
In Leopard, you can find some examples of background images inside folder Mac HD (which is your hard drive name) ▸ Library ▸ Desktop Pictures. Ripples Blue.jpg is one of the small sized repeatable background images I'm talking about.
However, this kind of background images can be easily created. Let's see how you can do it.
Responding my recent article Easiest Way to Grab Icon, Luke provides very nice trick that I believe putting it here will be helpful.
With a simple highlight and import, Preview can display exactly the displayed icon. Let's see how to do it.
It's Christmas. From the bottom of my heart, I gladly share my joy with the hope that the words of peace and love will be spread around the world.
By the way, I've spotted several web sites that have changed their logo to greet this wonderful Christmas.
Browsing around and I found out these funny and cool stuffs. Maybe you've ever seen these stuffs before; But, still, I hope you can enjoy it.
Digging around my Finder and discovering this amazing background for Time Machine make me very proud of myself.
I don't have any devices available to access my Time Machine. However, I can tell from Mac OS X Leopard Guided Tour how does the Time Machine background look like.
Red and white is the original iCal icon color. Let's change it.
iCal icon is stored in the file App-empty.icns. This file full-path is :
Macintosh HD ▸ Applications ▸ iCal ▸ Contents ▸ Resources
You are recommended to back up the original icon before doing some changes in the icon. Now, open the App-empty.icns with Preview. Next, you may use the new Preview tools Adjust Color and make the adjustments like below :
Are you getting bored already with your monotonous looking Dock?
When I browse throughout my Leopard, I've found out that there are several image files in PNG format that control the appearance of the Dock. I tried to delete those files ( I made backup before that ) and I got invisible glass for my Dock. Let's see what are those files.
The glass where your icons sit is controlled by image files named scurve. It's separated into four files, scurve-sm, scurve-m, scurve-l and scurve-xl. I think scurve stands from super curve. I hope I'm not wrong. The one white line at the bottom of the Dock is controlled by an image file named frontline. A line that divide Dock into two parts is controlled by an image file named separator.
And all of them are located inside :
Macintosh HD ▸ System ▸ Library ▸ CoreServices ▸ Dock ▸ Contents ▸ Resources
Leopard Preview got some new tools, from the coolest and most useful one to the ugliest and least useful.
This is the most useful new feature of Preview in Leopard. As its name states, it helps you adjust your image color right inside the Preview. This tool isn't attached to the toolbar. However, you should be able to call it up with keystrokes 
C
▸ Tools ▸ Adjust Color
With some adjustments on Exposure, Brightness, Contrast, Saturation, Temperature, Tint and Sepia, you could actually enhance special effect to your image, like what I did to this Leopard's image Clown Fish.jpg. This image can be found inside
Macintosh HD ▸ Library ▸ Desktop Pictures ▸ Nature.
Enrich your Adium chat messenger with these cute cat emoticons.
I often use these cat emoticons when I chatted with my friends. These emoticons are very useful for throwing away all your stress on work, especially the cute baby cat at row 3 column 4.
I love image. I love editing image. Fortunately, I met ColorSync Utility.
ColorSync Utility can help me edit my image. I can Resize Image, Apply Profile to image and do Image Correction.
First of all, we need to open our image(s) with ColorSync Utility. You have to highlight image(s) that you want to edit. Then, 
Clck
