How to Use the Magnifying Glass Tool in Preview to Zoom Into Image Detail on Mac, MacBook: macOS Big Sur/Catalina or Earlier

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Magnify image on Mac, Challenging task for beginners and None technical person. But this an impressive way of present any picture to the third party Through Mail, Messaging app, or On the blog. But you can do it without any third-party software (Photoshop Alternatives, Or on Photoshop). So here is the complete guide on how to magnify the image on macOS. Mostly college or school profession uses picture magnification on the Presentation slide, Enlarge body organ in science, Magnify machine part in technology or Companies easily using Mac Preview app.

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Compatible Device: MacBook, MacBook Air, MacBook Pro, Retina, iMac or Mac Mini.

More operation: Crop picture on Mac Preview.

Steps on How to Magnify The image on Mac, MacBook

  • Update, Some Users are reported Preview app keeps crashing on Mac while using the Magnifying Glass tool. Update macOS to latest version, Go to Apple Logo from top Menu > System Preferences > Software Update > Update.

Step 1: Open picture in Preview, Right-click on picture > Open With (Preview) Default.

Open Picture in Preview on Mac
Open Picture in Preview on Mac

Step 2: From the Preview toolbar: Show Markup Toolbar.

Use Markup Photo Editing tool on Preview Mac
Use Markup Photo Editing tool on Preview Mac

Step 3: Next, From the different picture tools > Go with Shapes.

Step 4: On Picture, you can see a glass movable circle icon, Hover with the correct place there you want magnification (Enlarge Part of the picture).

Magnifying Glass Tool in Preview on Mac
Magnifying Glass Tool in Preview on Mac

Now, how to resize the magnification area and Zoom effect, 

  • For more zoom, Choose green dot on circle edge and move on the boundary in a clockwise direction. and for Zoom out move it anti-clockwise direction.
  • Now Change the size of circle > Choose Blue Dot and move or pull it outside of the circle.
Change Magnifying Glass Size on Preview on Mac
Change Magnifying Glass Size on Preview on Mac

Magnified image save into own format. PNG (High resolution but large file size) and JPEG (Small in size and convenient for Webmaster and sharing on web).

  • From the top Preview menu, File > Export > Change extension and Resolution.

That’s it, The above steps are best and easy for How to magnify the image on Mac, MacBook Pro/ Air.

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