Trackpad gestures
For more information about these gestures, choose Apple menu > System Preferences, then click Trackpad. You can turn a gesture off, change the type of gesture, and learn which gestures work with your Mac.
Expose is an awesome feature of Mac OS X that functions as sort of like a window manager and app switcher all in one. I use the feature so often it is almost impossible to live without. If you don’t use Expose, you should start, and this simple little list of keyboard shortcuts with each accompanying action is a good place to learn how to get started. How Mac OS X Lion Brings the Best of iPad to Your Mac. Mac OS X 10.7 Lion is here. As we predicted, Apple's desktop operating system is going in the same. You have to shuffle haplessly through spaces and hit expose and hope the window you're looking for shows up, and if that fails, which happens often, then you have to switch to every application and hit app expose.
Trackpad gestures require a Magic Trackpad or built-in Multi-Touch trackpad. If your trackpad supports Force Touch, you can also Force click and get haptic feedback.
Secondary click (right-click)
Click or tap with two fingers.
Click or tap with two fingers.
Smart zoom
Double-tap with two fingers to zoom in and back out of a webpage or PDF.
Double-tap with two fingers to zoom in and back out of a webpage or PDF.
Zoom in or out
Pinch with two fingers to zoom in or out.
Pinch with two fingers to zoom in or out.
Rotate
Move two fingers around each other to rotate a photo or other item.
Move two fingers around each other to rotate a photo or other item.
Swipe between pages
Swipe left or right with two fingers to show the previous or next page.
Swipe left or right with two fingers to show the previous or next page.
Open Notification Center
Swipe left from the right edge with two fingers to show Notification Center.
Swipe left from the right edge with two fingers to show Notification Center.
Three finger drag
Use three fingers to drag items on your screen, then click or tap to drop. Turn on this feature in Accessibility preferences.
Use three fingers to drag items on your screen, then click or tap to drop. Turn on this feature in Accessibility preferences.
![Expose Expose](/uploads/1/3/4/2/134246507/318062461.jpg)
Look up and data detectors
Tap with three fingers to look up a word or take actions with dates, addresses, phone numbers, and other data.
Tap with three fingers to look up a word or take actions with dates, addresses, phone numbers, and other data.
Show desktop
Spread your thumb and three fingers apart to show your desktop.
Spread your thumb and three fingers apart to show your desktop.
Launchpad
Pinch your thumb and three fingers together to display Launchpad.
Pinch your thumb and three fingers together to display Launchpad.
Mission Control
Swipe up with four fingers2 to open Mission Control.
Swipe up with four fingers2 to open Mission Control.
App Exposé
Swipe down with four fingers2 to see all windows of the app you're using.
Swipe down with four fingers2 to see all windows of the app you're using.
Swipe between full-screen apps
Swipe left or right with four fingers2 to move between desktops and full-screen apps.
Swipe left or right with four fingers2 to move between desktops and full-screen apps.
Mouse gestures
For more information about these gestures, choose Apple menu > System Preferences, then click Mouse. There you can turn a gesture off, change the type of gesture, and learn which gestures work with your Mac. Mouse gestures require a Magic Mouse.
Secondary click (right-click)
Click the right side of the mouse.
Click the right side of the mouse.
Smart zoom
Double-tap with one finger to zoom in and back out of a webpage or PDF.
Double-tap with one finger to zoom in and back out of a webpage or PDF.
Mission Control
Double-tap with two fingers to open Mission Control.
Double-tap with two fingers to open Mission Control.
Swipe between full-screen apps
Swipe left or right with two fingers to move between desktops and full-screen apps.
Swipe left or right with two fingers to move between desktops and full-screen apps.
Swipe between pages
Swipe left or right with one finger to show the previous or next page.
Swipe left or right with one finger to show the previous or next page.
1. You can turn off trackpad scrolling in Accessibility preferences.
2. In some versions of macOS, this gesture uses three fingers instead of four.
The safest place to get apps for your Mac is the App Store. Apple reviews each app in the App Store before it’s accepted and signs it to ensure that it hasn’t been tampered with or altered. If there’s ever a problem with an app, Apple can quickly remove it from the store.
If you download and install apps from the internet or directly from a developer, macOS continues to protect your Mac. When you install Mac apps, plug-ins, and installer packages from outside the App Store, macOS checks the Developer ID signature to verify that the software is from an identified developer and that it has not been altered. By default, macOS Catalina also requires software to be notarized, so you can be confident that the software you run on your Mac doesn't contain known malware. Before opening downloaded software for the first time, macOS requests your approval to make sure you aren’t misled into running software you didn’t expect.
Running software that hasn’t been signed and notarized may expose your computer and personal information to malware that can harm your Mac or compromise your privacy.
View the app security settings on your Mac
By default, the security and privacy preferences of your Mac are set to allow apps from the App Store and identified developers. For additional security, you can chose to allow only apps from the App Store.
In System Preferences, click Security & Privacy, then click General. Click the lock and enter your password to make changes. Select App Store under the header “Allow apps downloaded from.”
Open a developer-signed or notarized app
If your Mac is set to allow apps from the App Store and identified developers, the first time that you launch a new app, your Mac asks if you’re sure you want to open it.
Mac Os Must Have Apps
An app that has been notarized by Apple indicates that Apple checked it for malicious software and none was detected:
Prior to macOS Catalina, opening an app that hasn't been notarized shows a yellow warning icon and asks if you're sure you want to open it:
If you see a warning message and can’t install an app
If you have set your Mac to allow apps only from the App Store and you try to install an app from elsewhere, your Mac will say that the app can't be opened because it was not downloaded from the App Store.*
If your Mac is set to allow apps from the App Store and identified developers, and you try to install an app that isn’t signed by an identified developer or—in macOS Catalina—notarized by Apple, you also see a warning that the app cannot be opened.
If you see this warning, it means that the app was not notarized, and Apple could not scan the app for known malicious software.
You may want to look for an updated version of the app in the App Store or look for an alternative app.
If macOS detects a malicious app
If macOS detects that an app has malicious content, it will notify you when you try to open it and ask you to move it to the Trash.
How to open an app that hasn’t been notarized or is from an unidentified developer
Running software that hasn’t been signed and notarized may expose your computer and personal information to malware that can harm your Mac or compromise your privacy. If you’re certain that an app you want to install is from a trustworthy source and hasn’t been tampered with, you can temporarily override your Mac security settings to open it.
In macOS Catalina and macOS Mojave, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab. Click Open Anyway to confirm your intent to open or install the app.
What Is App Expose
The warning prompt reappears, and you can click Open.*
Apps For Mac
The app is now saved as an exception to your security settings, and you can open it in the future by double-clicking it, just as you can any authorized app.
Mac Os App Expose Software
*If you're prompted to open Finder: control-click the app in Finder, choose Open from the menu, and then click Open in the dialog that appears. Enter your admin name and password to open the app.