Using Preview

Do you use Preview to look at your photos on your Mac?

You can use Preview to look at images, edit them, convert them to a different format, or start a photo slideshow.

Many images (such as JPEG, TIFF, GIF, PNG) open in Preview automatically simply do one of the following:

  • Double-click the image file.
  • Drag the image file to the Preview icon in the Dock.
  • Drag a folder of images to the Preview icon to open all of them at once.

Preview Tips:

If an image opens in a different application but you want it to always open in Preview when you double-click it, do this one time: Control-click the file, let go of the Control key, press the Option key, then choose Always Open With > Preview. Or, select the image file, choose Get Info from the File menu, then change the “Opens with:” pop-up menu choice to Preview.

If you are more interested in your photo’s detail, simply click on Command+I on your keyboard. It will open all the image data in a small window.


command + I

You can read general info as well as exif info about the photo. Or you can click on the preview menu selection under tools.

For exif info you will see these details;

– If you want to change the Exposure, Contrast, Saturation, Temperature, Tint, and/or Sharpness of your picture Choose Adjust Color from the Tools menu

– To Rotate an image click the Rotate button, or choose Rotate Left or Rotate Right from the Tools menu, or rotate two fingers on your trackpad, or press Command-L or Command-R

– To resize an image choose Tools > Adjust Size, then enter the size you want to change the image to, then click OK. Resize multiple images by first selecting them in the sidebar.

– To crop an image click and drag to select the area of the image that you want to retain. Next, choose Tools > Crop or press Command-K. If you crop too much, you can press Command-Z or choose Edit > Undo to undo the crop.

-To add an arrow, circle, rectangle, text, and more choose Tools > Annotate; several buttons appear below the toolbar of the Preview window, including Arrow, Oval, Rectangle, and Text

– To zoom in just pinch with two fingers, or click the “+” button on your keyboard

– To view photos in a slideshow just drag multiple images to the Preview icon in the Dock; then from the View menu, choose Slideshow. You can also open multiple images at once by dragging a folder containing images to the Preview icon.

You can Customize Toolbar in Preview app. To do so: Preview, choose View > Customize Toolbar.
Or right click on the toolbar where the menu bar is, it will bring a small window of options.

Add items to the toolbar by dragging them from the sheet to the toolbar.
– To remove items from the toolbar, drag the item off the toolbar.
– Rearrange items on the toolbar by dragging them left or right.
– To change how items on the toolbar appear (as icon, as text, or as both), use the “Show” pop-up menu at the bottom of the sheet.

My favorite tool is the magnify.
You can magnify any oart of your photo, it is great to look at details.

Preview is a free app and it is very handy to look at your photos or your pdf files.

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