How to Reduce a Pixelated Image on an iPhone
By Daniel Hatter
At 640 by 1136 pixels, the iPhone 5 has a fairly high-resolution screen, at least when compared to many other mobile devices. However, Web pages often contain lower-resolution images that become pixelated rather easily if you zoom in on them too much. This can be a problem if you're trying to test the appearance of an iPhone site or application for your business. The iPhone's zoom feature works in most iPhone applications, including the Safari Web browser and image viewer. To reduce the pixelation of an image on your iPhone, zoom out.
Double-tap the image on your iPhone screen with one finger. If it was zoomed in to more than its default size, it returns to its default size; if it is still pixelated, proceed to the next steps.
Place your thumb and forefinger on your iPhone screen about two to three inches apart.
Drag your thumb and forefinger together in a pinching motion. The image reduces in size even further, becoming less pixelated in the process.
The iPhone 4/4S has a screen resolution of 640 by 960 pixels, while earlier iPhone models have a screen resolution of 320 by 480 pixels.
Daniel Hatter began writing professionally in 2008. His writing focuses on topics in computers, Web design, software development and technology. He earned his Bachelor of Arts in media and game development and information technology at the University of Wisconsin-Whitewater.