Applimizer

The main Applimizer window. A guidance message at the top of the window informs you on what you can do next.
Underneath, you can also see a statistical overview of the savings that can be achieved. There are two sections: a summary and an individual view. The data that you see in the picture above is a summary over all five applications. As you can see, you can save 82.1 MB or about 71 percent.
In the individual view (not shown above), you can review the statistics for each application separately.
Note that nothing has been changed on your disk thus far - Applimizer only ran an analysis.
At this point you would probably click on the Options button to open the options window (see below).
If you clicked the Optimize All button, then all five applications would be optimized in one go.

The Options Window: General Tab
The first option is for embedded help documents in the Hypertext Markup Language (HTML) format. They can be compressed without changing their appearance in Help Viewer.
The second option governs the optimization of embedded string files. These typically contain many comments aimed at the developer. For you, these comments have no value and can be safely removed. (This is new since version 1.1).
The next option is for the optimization of user interface files, that is NIB files used by Cocoa applications. (This is new since version 1.3).
.DS_Store files are hidden temporary files used by the Finder when you look inside the application package. They are not required and can be removed.

The Options Window: Language Tab
In the language section of the options window, you can define which languages you are using. Any language not listed here is to be removed from an application (provided one of the preferred language exists).
Applimizer pre-populates this list with the languages that you have defined in the International pane of the System Preferences.
Double-click any language in the list to edit it. To add more languages, or to remove some, use the corresponding buttons.
At the bottom, there is an option to keep the language in which the application was designed in, whether it is listed above or not. If an application did not contain any of your preferred languages, the system would use this language.
NB. The development language is the one that is underlined in the language list in the main window.

The Options Window: Advanced Tab (image not to scale)
Classic code can coexist with native Mac OS X code within the same application. If you know that you never use the Classic environment, you can remove the Classic code with the first option in this section.
With the second option, you can remove the embedded eSellerateEngine used by ShareWare application such as Applimizer itself. This option should be used with extreme caution (more information).
Finally, with the last option, you can specify a threshold size. An embedded file must be larger than this threshold to be optimized. The default is 4 KB (kilobyte). This is relevant for HTML, NIB, and string file optimization. (This is new since version 1.3).