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Wake On Demand in Snow Leopard

Putting your Mac to sleep saves power, but it also disrupts using your Mac as a file server, among other purposes. Wake on Demand in Snow Leopard works in conjunction with an Apple base station to continue announcing Bonjour services that the sleeping computer offers.

While the requirements for this feature are complex, eligible users can toggle this feature in the Energy Saver preference pane. It's labeled Wake on Network Access for computers that can be roused either via Wi-Fi or Ethernet; Wake on Ethernet Network Access or Wake on AirPort Network Access for wired- or wireless-only machines, respectively. Uncheck the box to disable this feature.

Submitted by
Doug McLean



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How to Change Screen Capture Formats

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How to Change Screen Capture Formats -- Last week, when talking about the new version of Snapz Pro X in TidBITS, I mentioned that Tiger changes the default file format used for screen captures taken with Command-Shift-3/4 from PDF to PNG. Thanks to Paul Schreiber for alerting me to the fact that you can change that default format back to PDF or to another format, presumably as long as it's one supported by QuickTime, such as JPG (extra points for anyone who wants to figure out all the possibilities and send me a list). Follow the steps below to make Tiger save screenshots as PDF.


  1. Open Terminal.

  2. Copy the "defaults write" line below, paste it into the Terminal window, and press Return.

    defaults write type pdf
  3. Log out or restart your Mac to make it pick up the new setting.

If you wish to reset the file format back to PNG, just repeat the steps, replacing "pdf" in the "defaults write" line with "png". [ACE]


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