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Preview Tutorial - Mark Up Tools
With Preview, you can open your PDF files and do some modifications to the files. Modifications can be done only when file isn't locked.
There are several useful tools in Preview that you can use. One of those is the Mark Up Tools.
Introducing Mark Up Tools
As the name suggest, this tool is useful for you to emphasize some parts of your PDF files. There are three mark up tools available: Highlight Control Command H, Strike Through Control Command S and Underline Control Command U. Don't worry about the shortcuts since they're easy to remember: take out the first letter and add Control Command in front.
If you still forgot what are they, you can always refer back to Preview menu Tools ▸ Mark Up. The tools can be seen there.
Exhaustive Tutorial for iMovie
This tutorials and all the details are written by Kelly Swee. Thanks, Kelly!
Starting Your Project (Command N)
After importing it into the mac, you will find your imported videos under the events library. To start, go to File ▸ New Project. The new project is found in the Project Library. Select and drag the video clips from the Event Library into the Project Library.
Addition of Audio (Command 1)
Click on the icon or shortcut key Command 1 to add audio tracks. You may choose a range of audio tracks from the default files, iMovie' 08 Sound Effect and iLife Sound Effects . There are so many different sound effects that you can choose from. I would advise taking some time off to go through them and get familarized so that you could refer to them as you shoot and edit videos from different ocassions. You may also obtain tracks from your iTunes and Garageband.