If you liked my how-to on rolling your own ImageMagick-based OS X Services using shell scripts, you’re going to love OptiPNG. It’s another command line utility that can be used to shrink PNGs without losing any quality.
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There are many times you might want to knock out the background of a particular image on your Mac. Typically, I pop into Photoshop or Fireworks to use the Magic Wand tool to select all the white space of that image, and delete from there. These programs cost hundreds of dollars, though. Isn’t there a free way to do this?
It turns out that Preview, the free image & PDF viewing (and now editing) app that comes with OS X will do the very same thing, without you having to spend an extra dime on image editing software. Here’s how to do it.
Taking photos is a ton of fun, especially with our nearly ubiquitous iPhones or iPads. I can’t tell you how many people I’ve seen in the last month or so snapping pictures with the big tablet device. Looks silly, but makes sense.
How do you get them to your Mac, though? You could email them, one at a time, or you can connect the device to the Mac and grab them via iPhoto. These days, you can even use PhotoStream in iPhoto to see the latest photos you’ve taken on any PhotoStream-enabled iOS device. Todays tip is even faster than that.
Have you ever wanted to change the default screenshot format in Mac OS X? The default PNG files can end up being huge, especially with higher resolution displays. In this video, I’ll show you how to change the format to anything you’d like, even a PDF.