- Image Resizer Software
- Best Photo Resizer For Mac
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- Best Image Resizer For Mac
Image resizer for mac free download - Batch Image Resizer, MediaRecover Image Recovery Mac, Fast Image Resizer, and many more programs.
- Dec 16, 2009 Batch Resize Images on Mac with Preview. Updated: 5/14/2019 for clarification. Note the precise menu language varies slightly per version of Mac OS or Mac OS X, as older versions differ from the most modern incarnations of Mac OS X.
- Oct 04, 2015 A quick tutorial on how to resize batch images using preview in mac OS X El Capitan. Hope you find this tutorial useful! Like & Subscribe!
I’ve looked at most, if not, all the image optimisation and resizing applications for Apple Mac OS X. There are quite a few!
I found that most are not particularly good or intuitive to use. Some were free, and some cost $20 or more.
After trying them all, I’ve now settled on just using Apple Preview to resize single images and batches of images. I also use another application to very effective optimize the image. Let’s look first at resizing in Preview
- Open Preview
- Go to FILE > OPEN > — and select one or more images to open. If you want to resize a batch of images, select more than one at this stage, rather than opening one, and then another, etc.
- If you don’t see the thumbnails to the side of the main Preview pane, activate the sidebar.
- Alternatively you can select the other icon to show all the thumbnails on the main Preview pane
- Select one image thumbnail in the Sidebar or on the main Preview pane, and then hit COMMAND-A to Select All. You’ll see something like this:
- Go to the TOOLS menu, select Adjust Size.
- You will see the following window slide down, in which you can set the dimensions you wish to resize to, and click OK
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That’s it. But don’t close Preview yet…
One more important thing: You will need to save the images yourself. Easiest way is to select Save All in the file menu.
The other application I run my images through—the ones I wish to resize or make smaller for online usage—is ImageOptim.
![Capitan Capitan](/uploads/1/2/6/5/126588422/783539045.png)
ImageOptim is super simple to use. Just drag the images onto its simple window. You can also click the + button to add images from within ImageOptim.
Be sure to check the Preferences before running any images through this application. Also note that it does not have particularly flexible options for what to do with the original image. You can tell it to Backup original files before saving. Note that this will simply put a tilde sign (~) on the end of the image name extension. So IMAGE.JPG will become IMAGE.JPG~
The optimised image will adopt the name of the original image. Personally I don’t go along with this logic. The original (backed-up) image ends up becoming a dysfunctional file because it now has an invalid file extension. I use A Better Finder Rename 9 to deal with this after I do a large batch of image optimisations.
With the two of these applications working hand-in-hand you can get highly optimized and resized images in a flash, ready for using online or sending via email.
22 August 2013 – UPDATE – ImageOptim no longer has a “Backup original files before saving” option. So if you don’t want your originals sent to the trash, you’ll need to make a copy of them first.
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Preview User Guide
You can resize or rotate an image opened in Preview to fit into a particular spot. You can also reduce the file size to save disk space or to download an image more quickly.
Change an image’s dimensions
- In the Preview app on your Mac, if the Markup toolbar isn’t showing, click the Show Markup Toolbar button , then click the Adjust Size button .
- Enter new values for width and height, or click the “Fit into” pop-up menu and choose a size.
- Resize the image by a percentage: Choose “percent” from the pop-up menu next to the Width and Height fields, then enter the percentage in those fields.
- Force the image to keep its original proportions: Select “Scale proportionally.” If you change either the width or height, the other value changes to maintain the proportions. If you choose a size from the “Fit into” pop-up menu, the image’s width or height may be smaller than the chosen size to maintain the proportions.
- Make the image’s dimensions smaller without losing any detail: Deselect “Resample image” before changing the width or height.
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Tip: To resize multiple images at the same time, display the images in the same window, select them in that window’s sidebar, then choose Tools > Adjust Size.
Rotate or flip an image
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- In the Preview app on your Mac, open the file you want to change.
- Do any of the following:
- Rotate an image: Select the image, then click (or use the Touch Bar) to rotate the image to the left. Continue clicking to keep rotating.To rotate the image to the right, press and hold the Option key, then click until you’re done rotating the image.
- Flip an image: Choose Tools > Flip Horizontal or Flip Vertical.
Tip: To rotate or flip multiple images at the same time, display the images in the same window, choose View > Thumbnails, select them in that window’s sidebar, then choose Tools > [Rotate or Flip].
Reduce an image’s file size
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- In the Preview app on your Mac, open the file you want to change.
- Choose Tools > Adjust Size, then select “Resample image.”
- Enter a smaller value in the Resolution field.The new size is shown at the bottom.
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Tip: To reduce the file size of multiple images at the same time, display the images in the same window, select them in that window’s sidebar, then choose Tools > Adjust Size.
See alsoCrop or rotate a PDF in Preview on MacUse the Touch Bar