The last time we explored Preview, OS X’s built-in document and image viewer, we discussed using it to crop and resize images, as well as how to undo those changes (see “The Power of Preview: Cropping ...

Skitch used to be my go-to Mac app for annotating images. Now I just use OS X’s Preview to get basic editing done in a pinch. As a blogger, I frequently deal with screenshots and images for posts.

As its name implies, Preview is designed to let you view documents. But it doesn’t have mystical all-seeing powers. Rather, it confines its talents to image and PDF files. Preview’s ability to open ...

Skitch Touch is well-suited for annotating images, especially on smaller screens. Evernote-owned free utility Skitch is a great way to annotate images and screenshots. It comes in both Windows and Mac ...

Lesson plan where students observe and analyze land use change over time, using before and after satellite images to create an animated view. Identifying, outlining, and marking areas of change in the ...

Start using images smarter to gain an edge in Google Images! Learn actionable tips that can help boost your images’ visibility on image search. Image optimization is among the most manageable yet ...