By Adela D. Louie, Last updated: August 27, 2019
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Do you have a lot of images in your Mac? Would you want to know how to resize an image on Mac for you to be able to save a lot of your storage space? Then this article is for you.
Pictures are considered to be one of the most stored items on a Mac device. This is because they're actually a lot of people who are having fun taking some pictures using their iOS devices. And because of this, what they tend to do is that they actually save these pictures on their Mac and serves as a backup.
And if you would want to preview a certain image on your Mac, then that will be easy. All you have to do is to double-click on the image file and then it will open automatically for preview.
And if in case that you have you have already changed your image file associations, all you have to do is to go to your Launchpad or you can also do this just by simply pressing the Command + Space and this will launch your Spotlight Search. Then from there, you can go ahead and search for Preview. And we are going to show you in a while on how you can do this.
So, if you would need to reduce the size of a certain image on your Mac because they are too large for you to send using email, or even to use online or for some other reasons. For sure, the very first thing that would get in your mind is getting an application such as Photoshop or other applications.
However, there is a way for you to be able to resize an image just by using your Mac without any applications that you would need to download. We are also going to show you here on how you can resize your images in many ways.
On the Mac, one of the simplest ways to resize a photo is using the bundled Preview application, which is available in all versions of macOS and Mac OS X. There are many reasons to resize pictures, whether to make them better fit into a document, webpage, email, as a wallpaper, or for many other purposes. Image Resizer for Windows. Image Resizer for Windows is a batch image resizer as it is easy to use. This powerful software is light on system resources and is free. The app allows you to resize a single image or images in bulk straight from your Windows Explorer. Features Of Image Resizer for Windows.
Part 1: How to Resize Image On Mac Using Preview
Here are the steps that you would need to follow for you to be able to change the size of an image using the Preview tool of your Mac.
Step 1: Go ahead and find the image that you want to resize. You can do this by using the Finder app or you can use your Desktop as well.
Step 2: After that, go ahead and double-click on the image. This way, you will be able to launch the image in Preview. If this does not work, you can go ahead and close it and then right-click on the image. After that, go ahead and choose “Open With” and then select Preview.
Step 3: And then, go ahead and click on Tools.
Step 4: From there, go ahead and choose “Adjust Size”. Or you can do it as well by clicking on the square that has the arrow icon on it in the menu bar.
Step 5: After that, you have to make sure that the Scale of the photo is proportionally chosen. This means that the things that you can only do are to change its dimensions such as its length, or its width.
Step 6: After that, go ahead and select if you want your image to be resized based on the pixels, percent, inches, cm, mm, or by its point.
Step 7: Then go ahead and adjust the width number or you can also choose to adjust the Height number. Either of which you choose, the other one will be able to adjust automatically to make your image proportional.
So that is it. You were able to resize your image using Preview on your Mac. This method will definitely change the dimensions of the image that you have chosen to resize. But aside from this method, there are several ways with how you can resize your image.
Part 2: How to Resize An Image and Make it Smaller
Now, if what you are trying to do is to change the size of your image so that you can send it to other people using your email. Then there is a possible way for you to do this.
If you are going to launch the Adjust Size menu, and if you take a closer look, you will be able to see one that you try to adjust the dimension of your image, then you will be able to see a preview of the size. This can be in MB or in KB.
Now, in case that what you are trying to do is to resize an image to 500KB, then all you have to do is to keep on adjusting the dimensions of your image until such time that you have reached your target size.
And, aside from that, there is another way for you to do resize your image. And you can do this by the quality setting under your Export menu. Here is what you need to do.
Step 1: Go ahead and click on the image that you want to resize and then click on Export.
Step 2: After that, you will be able to see several file formats that you can choose from. You will be able to see formats such as HEIC which is the new file format, JPEG, JPEG-2000, OpenEXR, PDR, PNG, or TIFF. And if you are going to check out below, you will be able to see a list of measurements of the file available. And if you are going to click on those different file options, you will be able to see that your image will change its size.
NOTE: JPEG is smaller than PNG file and TIFF is bigger than the PNG file.
Step 3: Even though you have already chosen JPEG, you can still actually go one step forward for you to be able to resize your image. All you have to do is to slide the quality bar from Best to Least until you reach the size that you would want.
Step 4: Once that you are done and satisfied with the file size, all you have to do is to click on the “Save” button.
Part 3: How to Resize Image on Mac but Still Maintain 300dpi
Since that the quality of the image that you are trying to resize still matters to you. Then what you would need to have the possible best result which is the 300dpi which is commonly used for images that to be printed out. So, if you want to know how you can do this, just go ahead and simply follow the guide below.
Step 1: Go ahead and deselect resample image.
Step 2: After that, go to the part where it says resolution pixels/inch.
Step 3: And then, go ahead and change the number that you see on your screen to 300. You can also change it to the number that you would want or what is required.
Step 4: Then you will be able to notice that the height and the width measurements will also adjust.
Step 5: From there, just go ahead and click on the “OK” button.
Step 6: This method does not actually adjust the previous size of your selected image, but it only means that once that the image that you are working on is chosen to be printed, then it will appear smaller but still crystal clear.
Part 4: How to Resize an Image on Mac by Cropping in Preview
One old-school way for you to be able to resize the image that you want is to crop it. This method is actually a very easy thing to do. Now, since not everybody knows about this, then here are some guidelines on how you can do it.
Step 1: Go ahead and simply click on the image that you want to resize in Preview.
Step 2: Then after that, go ahead and drag the blue box that has the surrounding of the image that you would want to crop.
Step 3: And if you would want to make a particular size, then all you have to do is to drag the dimension box until you reach your target. And also, you will be able to see at the bottom right corner of your screen the pixel that has been chosen.
Step 4: And so, once that you have to right size box, go ahead and un-click the box then you will be able to move the box’s position.
Step 5: Once that you are satisfied with the result, all you have to do is to go ahead and press on Command + K and then you will be able to crop the image.
Part 5: How to Resize an Image Without Losing the Quality
AS we all know, there is no way that you can actually add some pixels on a certain image for you to have better quality. But what you can do is that you crop the crop the image as what we have mentioned above.
On the other hand, you can also use the HEIC format, which you can actually use for you to save more of your space on your Mac. This way, you can save a certain image that is actually smaller than the JPEG but at the same time, you will still have the same quality.
The HEIC however, is only available if you are using a macOS High Sierra or Mojave. You can also have this format if you are using an iPhone or an iPad that is running on iOS 11 or iOS 12.
Part 6: How to Do A Batch Resize
Another way for you to make your job easier is to do a batch size. You can do this if you actually have a number of images that you would want to adjust. For you to know how you can do this, just go ahead and follow the guide below.
Step 1: Go ahead and choose all the images that you would want to resize by using your Finder application. You can also do this on your Desktop. Make sure that you are pressing the Command key while you are choosing your photos.
Step 2: After that, go ahead and right-click on all on the image that you have chosen and launched it on Preview. You can choose by pressing the Command + A.
Step 3: After that, go to Tools, and then click on Adjust Size.
Step 4: And if you would want to change the dimensions of your image, go ahead and click on Scale Proportionally.
Step 5: Then, you will be able to see on your screen “Multiple Values” and all the measurements in columns.
Step 6: After that, go ahead and click on “OK” to adjust the size of your image that you have chosen earlier.
Step 7: And then, go ahead and press Command + S for you to save all the images that you are working on.
Part 7: Changing the Format of Your Image
And as a bonus tip for you to be able to save more space on your Mac, you can go ahead and change the file format of pictures that you have resized to make its size smaller. Here is how you can do it.
Step 1: Go ahead and click on the File option in the menu bar.
Step 2: After that, go ahead and click on Export.
Step 3: From the list of format seen on the drop down, you can go ahead and choose the format that you want. You can choose from HEIC, JPEG, JPEG-2000, OpenEXR, PDR, PNG or TIFF file format.
Step 4: With the options shown, you can also adjust the quality of your image.
Step 5: And once that you are satisfied with the outcome, go ahead and simply click on Save.
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Part 8: Conclusion
So, there you have it. Resizing an image on your Mac is possible without having to download any applications to use. All you have to do is to follow all the steps that we have mentioned above depending on how would you want to appear your image.
Getting the right fit for your digital images is key to displaying them properly on the web. Not only does image resizing help you get the most appropriate size and quality for your picture, but it also helps improve the loading speed of your webpage. But finding the right resizer tool can be confusing since there are so many out there. We’ve taken the time to sift through some of the most popular image resizers to bring you this guide to the 5 best image resizer tools.
Together we’ll look at the best image resizer software, the best ones for windows, and the best image resizers available online. Use these tools to get the perfect photo fit for your website, social media, e-commerce storefront, or whatever other digital content you’re creating.
The importance of image resizing
A potential customer’s first impression of your website or social media imagery is one of the deciding factors when retaining clients and making positive sales. Visual appearances are not only important for building customer trust, but also for capturing your audience early on. That’s why it is extremely important that you take the time to properly curate the imagery on your site.
Using high quality and beautiful photos that perfectly fit your site is so important. As many digital marketing experts know, using the right photos can increase traffic and drive revenue, while poor quality photos can do just the opposite. At the same time, poorly fitted photos can reduce page speed, making for frustrating user experience. You could have the most beautiful photos in the world but a failure to size them correctly could scare your traffic away with slow loading times and a glitchy interface.
Best Online Image Resizer: Resizing.app
Resizing.app is every creative professional’s best friend. It comes in handy whenever you’re sending files that are way too big for your email service. You can use it to resize, compress, or optimize image files with a few clicks.
Nothing could be more convenient than an image resizer that works online. There is nothing to install, nothing to lock-up, simply a perfect image resizer for the web that works on any web browser, from a mobile device, and on a computer.
Best app: Perfect Resize with Adobe Photoshop
Best Free Photo Resizing Software For Mac
Adobe Photoshop is one of the most popular premium photo editing software packages available on the market. Used by photographers, web designers, and digital editors all over the world, Photoshop is one of the most versatile and powerful tools you can find. But when it comes to resizing images, Photoshop alone is not always up to the task. Fortunately, you can enhance your Photoshop experience with the convenient add-on known as Perfect Resize.
Unlike many other image resizers, Photoshop is not a free tool. However, its ease of use and amazing image resizer results are definitely worth the cost. While Perfect Resize is not invincible, it can easily enlarge images up to ten times their original size without losing much visible quality. Hence, the reason why Perfect Resize is the preferred method by photographers everywhere when it comes to resizing images to a poster or even billboard sizes.
Perfect Resize is recommended for amateurs and professionals alike. And while it comes as a powerful add on for Adobe programs like Photoshop, it can also be purchased as a stand-alone program. Other than its relatively low cost, there are hardly any other downsides to Perfect Resize, making it perhaps the best image resizer out there. Perfect Resize is available for most operating systems, likely making it the best tool for both Windows and Mac.
Free Photo Resizing App
A Simple one: BeFunky
Best Free Picture Resizing Software
BeFunky’s free version is a simple image resizer with a user-friendly interface and enough optionality for all your basic resizing needs. With BeFunky, you can easily do basic image resizing and image editing at no cost. And if you want more options, upgrade to a monthly subscription for access to advanced photo filters, touchups, and other effects.
BeFunky’s biggest pro is that as an excellent free image resizer. BeFunky allows you to manipulate your image by height and width, or by a percentage scale. You can choose what you want, but it’s always worth experimenting with different dimensions to get the best results. If you know the exact dimensions you need, then simply type those inputs into the height and width fields to get your results. However, for those with more advanced needs, or even the need for professional quality results, BeFunky probably isn’t up to the task.
Resizing multiple images at once: Online Image Resizer
Online Image Resizer is one of the simplest free resizers out there. One of its greatest perks is the ability to resize many images at once in what is known as batch resizing. While Online Image Resizer doesn’t have many bells and whistles, it is a reliable program that users find extremely easy to use. In fact, Online Image Resizer is so limited in functionality that it is only able to resize images by width. So depending on your project, this could easily be the easiest option or the most useless.
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As there is just one option, choose your desired image width by moving the scale at the bottom of the application. With the minimum width of 16 pixels and a maximum of 1024, it is extremely limited. However, what it lacks in functionality, it makes up for in speed and user-friendliness. Moreover, with Online Image Resizer you can resize many different images at the same time!
Social Image Resizer Tool
The internet is chock-full of resizer tools, but not all are created equal. But when it comes to social media, one of the easiest resizer tools to use is the Social Image Resizer Tool. Designed with social media in mind, Social Image Resizer Tool is an adaptable program suitable for all your social media resizing needs.
To use Social Image Resizer Tool, first, upload your image, then select the dropdown menu to choose what to do with your image. With its many preset templates, Social Image Resizer Tool comes preset for resizing profile photos on Facebook and LinkedIn. It can also be used to resize Pinterest and Instagram thumbnails, scale Youtube channel art, and even create custom Youtube video thumbnails.
As a simple image resizer, Social Image Resizer Tool is easy to use with its many preset templates for all your social media needs. However, the maximum supported file size is only 2mb, which may not be big enough for all projects. In this sense, Social Image Resizer Tool is limited to only small photo file sizes. If your image file size is larger than 2mb, it’s time to look elsewhere.
Rsizr
Rsizr is an excellent online image resizer for manipulating different image file types such as JPG, PNG, and GIF. Rsizr’s intelligent and user-friendly online interface lets you easily resize, rescale, crop, and more. Rsizr’s seam carving feature allows for high-quality image resizing by ensuring that highly detailed areas of your images stay intact during the resizing process. Beyond these features, Rsizr also allows for image rotation, the removal of picture objects, and even the ability to create panorama sized images from normal images.
Photo Resizing Software For Mac Free Mac
The upside to Rsizr is that it works great with a variety of different file types and sizes. But the downside to using Rsizr is that it relies on Flash Player. As many security experts know, Flash Player suffers from security weaknesses and is a preferred entry point for spam and even malicious software. As the only way to run Rsizr is by enabling Flash Player, caution is advised.
Tools for every resizing need
Hopefully, by now you’ve figured out which tool is best suited for your resizing needs. If you’re looking for professional-grade photo resizing but don’t have access to Photoshop, we recommend Resizing.app as the next best. Otherwise, the other tools on this list remain popular even if they are slightly more limited in scale and scope. Happy resizing!