Lazy Panda for iPhone allows you to set your favorite picture as your iPhone wallpaper. You only need to take some simple steps without the need to know about complex skills of processing images. 
In order to make your own iPhone wallpaper, you need to connect your iPhone to your PC, and run Lazy Panda for iPhone as well (if it is the first time you run LP for iPhone, please make sure that you have installed iTunes on your PC).

 
Step 1: Enter the Main Interface.

Step 2: Click the Media button and then click "Wallpapers" to enter the Wallpaper interface,

Step 3: Click the "iPhone Wallpaper" button and you can see "Edit" button on the bottom left, just click it.

Step 4: Then click the  icon at the bottom to add the image you want to set as wallpaper.

Step 5: Then you will see a pop-up dialog box. Select the picture you want.

Step 6: Then, you will enter into Edit Mode. Just go ahead and modify the picture as you like.

 Last step: Click the Confirm button, and the picture will be automatically uploaded to your iPhone. Then click Set Wallpaper button to set the picture as your wallpaper.