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.
A real useful web service for all the designer who want to know what colors have been used on a certain image. You can even download a Photoshop Swatch file containing the color palette of the image.
Let me show you a very simple yet effective trick that will stop the ads from popping up when you or your kids are playing iPad games. It can save you some money as well.
In the previous part of this Photoshop tutorial we made the photo look dark as night. We will now continue by adding some light to one of the windows and placing a nice looking moon into the sky.
