MacHouse

   Last updated: August 02, 2011

1. Installing and uninstalling PNG4iDevices

Please read the README file that comes with the application.  Or click here to download one.

2. Introduction

What is PNG4iDevices?  Simply stated, it's a PNG file generator.  If you develop iPhone/iPad applications, you should be aware by now that you need various sizes of PNG files.  PNG4iDevices will let you create different sizes of PNG files that are to use for iPhone/iPad applications.  For example, with a single image file (PNG, PSD, TIFF) larger than or equal to 512 x 512 pixels, you can create PNG files with the following dimensions for an iPhone application in less than a second: 57 x 57 px, 512 x 512 px, 29 x 29 px.

PNG4iDevices is a batch-generator.  So if you have multiple applications for which to create various sizes of PNG files, you can just drag and drop those source image files all onto the listbox as shown in Screenshot 2-1.

3. Preferences

When you first launch any new application, it's always a good idea for you to open Preferences.  Okay, why not?  In order to open Preferences, choose Preferences under PNG4iDevices.  (See Screenshot 3-1.)

The first tab is Settings.  And you don't have many settings to work on.  (See Screenshot 3-2.)  The descriptions of some of the checkboxes under this tab are given in the following.

• Require restart: Enable this checkbox if you want the application to automatically restart itself when you close Preferences window.  By so doing, you can make sure your application is updated with the latest changes you've made in Preferences.
  
  
• Make sound when done: With this check box enabled, the application will play a short sound when the export process is complete.

And choosing either radio button at the bottom under the same tab, you can choose for which device you want to start this application, iPhone or iPad.

Furthermore, under Settings, find a box that is labeled Default open folder.  Set a default folder by clicking on the Select button if you want.  (See Screenshot 3-3.)  When you choose File > Open to locate a source image file to read, PNG4iDevices will point to the folder or volume you set here.  By default, it will point to Desktop.  And it will automatically revert to Desktop if PNG4iDevices does not locate the selected default folder when it starts up.

Next, let's switch to the iPhone tab.  The settings under this tab will directly reflect those under the tab of the same name on the main window.  Choose either Normal resolution or High resolution, and then select image sizes.  (See Screenshot 3-4.)  Likewise, the settings under iPad tab will reflect those under the tab of the same name on the main window when the application starts up.  You can set an export folder/volume separately for this device.