Posts By: Gary Rosenzweig

When you double-click a file it opens in the default app for that file. But you can choose to open many files with another app such as a different image or text editor. Learn many ways how to select which app opens a file and how to change the default app for that file.

Keyboard Maestro allows you to use the Command, Option and Control keys on the right side of your Mac keyboard as single-key shortcuts if you know how to set it up right. I'll also show you how to use Text Replacements without leaving an extra space or return after.

New emoji characters are coming to the Mac. But why does Apple put in the effort to add new emoji when there are others things that are more important?

It is cheap and easy to use a green screen to make videos with your Mac in iMovie. A green screen can also help you improve the quality of your online meeting video.

There are several ways to merge PDF files on your Mac. A simple Quick Action in the Finder will do it quickly, but using Preview gives you lots of options to arrange and customize the resulting PDF document. You can even split a PDF file with the same techniques.

In a recent video I showed 3D animated layers for illustrating how the Desktop on the Mac works. Here's how I created those 3D animations.

Desktop Stacks can help you clean up your messy Desktop while still keeping the files you want available there.

Instead of using copy and paste, or a Duplicate command, you can often hold the Option key down and drag items in apps to duplicate them. This has the advantage of allowing you to duplicate and position the new item at the same time.

Boost your productivity by customizing your Finder sidebar. You can add the folders and locations you use the most and access them easily in the Finder, Open, Save and Upload dialogs.

New Mac users often have trouble understanding the concept of the Desktop because the term is used to describe a variety of things.

Connecting a Mac to an external display requires just a simple cable, but it can be confusing to know which is the right one to buy. A basic DisplayPort cable is all you need, but an HDMI adapter may seem like a good choice instead.

If you need to copy some text or even an image from a file, you don't necessarily need to open the file up in an app. Often Quick Look can be used to find and copy file contents.

If you are using the iPhone's virtual keyboard and can't find the comma key, there are a few reasons why.

You can set the screenshot format to something other than png using a simple Terminal command. Some screenshots will save you storage space, but scarfing quality.

You can make videos that feature your Keynote presentation and you live on camera on the slides. With this technique you can record your presentation for later use or as a YouTube explainer video.

Desktop Stacks can help you clean up your messy Desktop while still keeping the files you want available there.

You can use a variety of built-in apps on your Mac to take notes. Which app you use depends on your needs and the specific situation.

I've been working on adding an exciting new feature to ClipTools, an editor window. You can use this to view your clips, saved clips and Smart Clips. You can also edit them and paste them directly from this window. You can use it to assign any Smart Clip its own global keyboard shortcut.

iPhone users switch apps constantly. But are you using the best app switching method for your needs? See a variety of ways to switch apps and their advantages.

Been playing around with the Apple Vision Pro some more, but mostly getting work done. Which is strange since some people are convinced you can't use it for work. Take a look at some interesting things I found.