MacOS provides a few different ways to do screen captures. My personal favorite is Grab, which is found in the Applications/Utilities folder. It lets me capture a selection, a window, or the whole screen without having to remember any magic key combinations. I keep it in the Dock for quick access.
Grab has one deficiency, though. It can save screenshots only as TIFF files. If Apple had to pick just one format, that’s hardly the most useful one. But there’s an easy workaround.
After you’ve got your screen shot, press Command-C or choose “Copy” from the Edit menu. Open the Preview application. Press Command-N or select “New from clipboard” from the File menu. You now have the screenshot in Preview.
In Preview, press Command-S or choose “Save…” from the File menu. You’ll get a dialog to save the file, with a choice of formats: JPEG, JPEG2000, OpenEXR, PDF, PNG, or TIFF. Pick whichever one you like. If you’re going to put the image into a Web page, PNG is usually the best choice. Preview will remember your choice for next time. Then save the file.
If you prefer, you can do the equivalent in Photoshop, Gimp, or any other image-processing application, but Preview has the advantage of launching quickly and keeping the process simple.
That’s it. You can now use Grab to save screenshots to a Web-friendly format.
FUIF: Yet another image format?
A tweet led me to a pair of articles about a new file format called FUIF. That stands for “Free Universal Image Format.” Jon Sneyers describes it in a series of articles which so far include a Part 1 and Part 2.
It’s “responsive by design”; a single image file can be truncated at various offsets to produce different resolutions. Sneyers says FUIF meets JPEG’s criteria for a new format that provides “efficient coding of images with text and graphics” and “very low file size image coding.”
Continue reading →
Comments Off on FUIF: Yet another image format?
Posted in commentary, News
Tagged FUIF, images