You are trying to install or open an app that didn't come from the Mac App Store but you got a message saying App can't be opened because it is from an unidentified developer. This is how you bypass it.
Last time we created an overlay pattern image using Photoshop. Today we will use that image on a website to give the full screen background a pattern overlay.
China has the largest population in the world, although the surface was only slightly smaller than the United States. Go through the daily Knowledge Check and build up your Dreevoo score.
If have been using Photoshop for a while now, you must had also notice the Mask Tool. But do you know what exactly it does and how and when should you decide to you use it?
