When your Mac slows down or starts behaving erratically, chances are it's because an application that's running, perhaps in the background, is misbehaving. And if it's not an application that's causing the problem, it will almost certainly be a process associated with macOS or an ancillary service. How To close Background App/Process in Yosemite/Mac #SpeedUpMac Tutorial to speed up your Operating System OSxYosemite. Without installing third-party apps you can speed up your Mac. Turn off background activity for all your third-party iPhone and iPad apps If you’d rather not worry about whether your iOS apps are playing fast and loose with the background-refresh feature.
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App Nap is an energy feature introduced to the Mac in OS X Mavericks that causes inactive applications to go into a paused state, helping to reduce power usage. The feature can help to prolong battery life for the MacBook line, and it can also make an impact on overall energy usage from the computer. Select an app from the list that appears and then select Add. Now, when you reboot or first start your Mac, the app will start automatically. You can check the box in the Hide column if you want the app to start in the background without taking up desktop real estate or displaying a splash screen.
You can extract part of an image. For example, you can extract one person’s face from a group photo and then paste the face elsewhere.
If an image’s background consists of areas that are mainly the same color, you can also remove the background.
Extract an image
- In the Preview app on your Mac, click the Show Markup Toolbar button (if the Markup toolbar isn’t showing), click the Selection Tools menu , then choose the Smart Lasso tool .
- Trace the edge of the image you want to extract.Make sure the image’s edge is within the thick border that appears as you trace.
- Connect the end of the border back to its beginning, or stop dragging to connect the border in a straight line back to the beginning.
- Waltr 2 download for mac. Do one of the following:
- To copy the image so that you can paste it in a document: Choose Edit > Copy.
- To remove everything outside of your selection: Click Crop or choose Edit > Invert Selection, then press Delete.
Extract a PDF page as an image
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![How To Turn Off Background App On Mac How To Turn Off Background App On Mac](/uploads/1/3/4/0/134074028/414067214.jpg)
You can select part of an image opened in Preview, then copy and paste it elsewhere or crop the content surrounding it. Download jyp superstar on apple mac. If the image is in a PDF, you need to extract the PDF page as an image before you can use the image markup tools.
- In the Preview app on your Mac, open the PDF file, choose View > Thumbnails, then select the page in the thumbnail sidebar.
- Click File > Export, type a name, add a tag (optional), then choose where you want to save it.
- Click the Format pop-up menu and choose an image format (such as PNG).
- Spotify download button avoid hitting. Click Save.
![How to turn off background apps on mac How to turn off background apps on mac](/uploads/1/3/4/0/134074028/589276332.jpeg)
Remove the background from an image
- In the Preview app on your Mac, click the Show Markup Toolbar button (if the Markup toolbar isn’t showing), then click the Instant Alpha button (or use the Touch Bar).
- Drag over part of the background.Preview selects the area you dragged over and any pixels adjacent to it that have the same colors.
- To delete the selected area, press Delete.To delete everything outside the selected area, choose Edit > Invert Selection, then press Delete.
- Repeat steps 2 and 3 until you have the image you want.
See alsoAnnotate an image in Preview on MacTake a picture of your screen in Preview on Mac