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How To Decrease Picture Size On Mac



Reduce the file size of photos on your Mac with Preview. Image file size can be a problem when transferring digital photos from one computer to another. Many email accounts limit the size of attachments they can send or receive. Preview, a program included with the Mac OS X operating system, can reduce the file size of photos. This is a standard feature of Mac OS X 10.4. To use this feature, make sure to select a standard paper size (for example, A4) as the Paper Size setting and the Scale to fit paper size setting.Do not select a paper size with a page setup option (for example, Sheet Feeder - Borderless).This feature is not available for Mac OS X 10.3 or earlier. Compress pictures to reduce file size. Compressing a picture maintains the height and width of the picture, but reduces the resolution. Lower resolution pictures have a smaller file size. Select the picture or pictures you need to reduce. Under Picture Tools on the Format tab. How to: Reduce image size on Mac. How to: Reduce image size on Mac. Skip navigation Sign in. This video is unavailable. Watch Queue Queue. Watch Queue Queue. How do I make a JPEG smaller on Mac? Reduce an image’s file size. 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.

© Sarah Waiswa/Getty Images There are several easy ways to resize an image in Windows. Sarah Waiswa/Getty Images
  • To resize an image on Windows, you can easily use the built-in Photos app or Microsoft Paint.
  • In the Photos app, there's a 'Resize' option hidden in the side menu, which you can use to change the size and quality of an image.
  • In Microsoft Paint, you can click 'Resize' and then enter the percentage or pixel size you want.
  • You'll get the best results by scaling an image down — if you want to increase an image's size, you're better off using a program like Photoshop.
  • Visit Business Insider's Tech Reference library for more stories.

It's not unusual to resize an image. In fact, if you often work with images downloaded from the internet, you'll probably find yourself resizing them a lot.

Luckily, the ability to resize images is built into nearly every photo application around. This includes two of the most popular, which are installed on every Windows 10 PC from the start: Photos, and Microsoft Paint.

Note, however, that there's a difference between resizing an image to be smaller, and resizing it to be larger. Nearly every program, Photos and Paint included, can scale an image down without issue. However, if you use these programs to make an image larger, you might find that the image loses a lot of quality.

If you need to scale an image up (greater than 100% of the original size) without getting it pixelated and blurry, then you'll need to use a program like Adobe Photoshop that includes a smart resizing feature.

But if you need to scale an image down, or you're fine with losing image quality, here's how to use Windows' built-in image resizing tools.

Check out the products mentioned in this article:

Adobe Photoshop (From $99.00 at Best Buy)

Windows 10 (From $139.99 at Best Buy)

Acer Chromebook 15 (From $179.99 at Walmart)

How to resize an image on Windows using the Photos app

The Photos app should be the default photo viewer for nearly every image type in Windows. Can i get windows on my mac.

1. Double-click the image file you want to resize to open it in Photos.

2. Once it's opened, click the three dots in the top-right corner, then click 'Resize.'

© William Antonelli/Business Insider Select the 'Resize' option from the side menu. William Antonelli/Business Insider

3. A small pop-up will appear, offering you three preset sizes for the picture. Pick one of them, or click 'Define custom dimensions' at the bottom.

© William Antonelli/Business Insider The preset sizes are measured in megapixels. William Antonelli/Business Insider

4. If you picked custom dimensions, a menu will appear that lets you set exactly how big you want the image to be. You can also choose how high quality the resized image will be — higher quality pictures look better, but have a bigger file size.

If 'Maintain aspect ratio' is checked, then you only need to change either the height or width, and the other dimension will change automatically to match it.

Set your new dimensions, and then click 'Save resized copy.'

© William Antonelli/Business Insider You'll be shown the picture's current size at the top of this menu. William Antonelli/Business Insider

How to resize an image on Windows using Microsoft Paint

1. Start Paint, which you can usually find in the Start menu. If it's not there, you can type 'Paint' in the Start button search box and click it when it appears in the search results.

2. Open the photo you want to resize by clicking 'File,' then 'Open,' and selecting the image from your computer's files.

3. In the top menu bar's 'Home' tab, click 'Resize.' The 'Resize and Skew' window should appear.

4. Enter the size you want to resize the image to. You can set the size by percentage (i.e. '30 percent larger'), or click 'Pixels' and enter the exact dimensions you want. As long as you keep 'Maintain aspect ratio' checked, you only need to specify the horizontal or vertical dimension, and the other dimension will be set automatically.

© Dave Johnson/Business Inisder Enter the percentage or pixel size to make the new version of your image. Dave Johnson/Business Inisder

5. Click 'OK' to make the change.

6. Save the new version of your image by clicking 'File' and then 'Save As.'

Related coverage from Tech Reference:

Now that every phone has an incredible camera on the back of it, it’s never been easier to take high-quality photos. And if you’re like me, that means you take pictures of everything from pets to friends. And there’s a good chance you even have a picture of what you had for brunch last weekend. So what do you do with these thousands of photos you have when you run out of storage space on your Mac? Well, you can compress them.

This article will explain how image compression works and give you step-by-step instructions to do it yourself. How to do ppt in mac.

What is compression and how does it work?

You might be wondering what it means to compress your pictures or why you’d want to do it in the first place. It’s no secret that pictures can get pretty large in file size. And depending on what it is, you might not need or want the highest quality of a photo. Compressing the image strips some of the picture’s data and, in turn, makes the file size smaller. Ultimately, freeing up more space on your computer.

Is it possible to compress images without visible quality loss?

When it comes to photo compression, there are two types: lossless and lossy. As its name implies, lossless compression is able to shrink the file size without losing any quality. Conversely, lossy compression will usually result in a bit of photo loss.

If your images are taking up too much space before you start compressing them, you could clean up the duplicate and similar pictures on your computer. An app like Gemini 2 will scan your computer and help you eliminate these images you don’t really want anymore.


How to compress images with Mac Preview app

Fortunately, there’s a feature in the default macOS app, Preview, that will allow you to compress your images. Follow these steps to see how to reduce photo size on Mac using Preview:

  1. Open the Preview app.
  2. A pop-up window should appear if it doesn’t click File > Open.
  3. Select the image you want to compress.
  4. Then, click Tools > Adjust Size.
  5. Adjust the Width and/or Height by pixel. You’ll see an estimate of the new size in the Resulting Size window.
  6. Click Ok.

If the picture looks smaller, don’t worry, it’s probably just zoomed out. Click View > Actual Size, and it should appear bigger again.

You can also use this method if you want to compress multiple pictures at the same time. Before step 4, make sure you click on one of the thumbnails in the sidebar and then press Command+A on your keyboard to select all. Then, when you make your size adjustment, Preview will apply it to all of the images.

How to compress images with online tools

Of course, if Preview isn’t getting your pictures small enough, there are a handful of online image compressors. Below you’ll read about how to use the top three.

1. Compressor.io

The nice thing about Compressor.io is that right off the bat you can choose whether you want a lossy or lossless compression. But you only get 50 compressions per day, and each file you upload has to be under 10 MB.

Free picture apps for mac. Using Compressor.io couldn’t be any easier. Just follow these steps to compress your pictures.

  1. In your browser, go to Compressor.io.
  2. Drag and drop an image file from your computer.
  3. After it finishes compressing, click Download.


How To Increase Picture Size On Mac

You can also see how much your photo has been compressed by clicking the Compare button.

2. TinyJPG

Another great online compression tool is TinyJPG. You can compress up to 20 jpegs or pngs at once, as long as they’re all under 5 MB and there’s no daily limit. If you pay to upgrade to their pro tier, you can compress as many files as you’d like simultaneously, and the file size limit goes up to 75 MB.

Follow these instructions to learn how to compress a jpeg on Mac using TinyJPG:

  1. Open your browser and go to TinyJPG.com.
  2. Drag and drop the image(s) you want to compress.
  3. It will automatically start compressing. Click Download to save your new file.


How To Decrease Picture File Size On Mac

How to decrease picture file size on mac

3. Optimizilla

Like the other two tools, Optimizilla is an online image compressor. Where Optimizilla beats out the others is there is no file size or daily compression limits. But, you still can only compress 20 images at one time.

How To Decrease Picture File Size On Mac

After you upload your picture to Optimizilla, it will compress the image to retain 90% of the quality by default. If you decide you want the file to be smaller, you can adjust the quality until you get the perfect balance of image quality and file size.

To compress your pictures using Optimizilla:

  1. Go to Optimizilla.com in your browser.
  2. Click Upload Files and select your images.
  3. You’ll be able to preview the compressed file and adjust it. If you’re happy with it, click Download.

How To Decrease Size Of Picture On Mac

Nothing beats cleaning up your photo library and removing all of your duplicate and similar pictures, just wasting precious hard drive space. But if you just can’t bring yourself to delete any of your pictures, compressing them is a great alternative to freeing up storage. Hopefully, this article has demystified the process of how to reduce an image’s file size on Mac.





How To Decrease Picture Size On Mac
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