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Tom Nelson

Tom Nelson
179 posts
Writer
Tom has been an enthusiastic Mac user since the Mac Plus. He’s also been known to dabble in the dark side, otherwise known as Windows, and has a well-deserved reputation for being able to explain almost anything to anybody. Tom’s background includes more than 30 years as an engineer, programmer, network manager, software tester, software reviewer, database designer, and computer network and systems designer. His online experience includes working as a sysop, forum leader, writer, and software library manager.

macOS 101: Edit Images With Preview

The Preview app is a handy tool for viewing and working with PDF (Portable Document Format) files, as outlined in the Rocket Yard guide: macOS 101: Mark It Up with Preview.  In Part Two of the guide, we’ll look at...

macOS 101: Mark It Up with Preview

Preview, the free PDF viewing app included with the Mac, can do a lot more than view images or open PDF files to view. It includes a number of features and services that can be used for editing PDFs, working...

Launch Services: Keeping Apps and File Associations Straight

Launch Services is a core service of the Mac OS that enables an actively running application to open other apps, documents, or URLs (Uniform Resource Locators). Launch Services is also used to prioritize which app is used to open a...

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