Compress Image: How to Reduce Image Size in Windows and Macbook Without Loosing its Quality

The purpose of image compression is to reduce undesired or redundant information in an image for storage or transmission. It is concerned with minimizing the number of bits required to represent an image. To put it simply, it means converting a large file into a smaller one.

In terms of compression, there are two types: lossless and lossy. The term “lossless compression” refers to the removal of empty, redundant, or unnecessary bits from the original file by the compression tool. Consequently, a smaller file has the same quality as the original. When a compressed file is lossy, excessive or unimportant bits are removed. This results in a smaller file but with lower quality. If you use lossy compression, how small the final file has to depend on how much quality you are willing to lose.

How to compress an image in Windows?

The first step in compressing a photo is to select the picture you wish to compress. Go to the Picture Tools tab, and then click Compress Pictures. Choose one of the following:

  • Click Print under Resolution if you want to compress your pictures for insertion into a document.
  • Click Web under Resolution to compress your pictures for publication on the Web.
  • Click E-mail under Resolution to compress your pictures for e-mailing.

The options may be limited in some pictures. You can now name and save the compressed picture wherever you want.

How to compress an image in Macbook?

The size and rotation of an image can be adjusted in Preview in order to make it fit in a particular spot. In addition to reducing the file size, you can also download images more quickly by reducing their size. Here is a step-by-step guide to compressing an image on Macbook.

  • On your Mac, click Show Markup Toolbar
  • If the Markup toolbar isn’t showing, then click Adjust Size
  • You can change the width and height by entering new values or selecting a size from the “Fit into” pop-up menu
  • Save this image under a new name to make a copy of the compressed version

Compressing an image online

Using a clever combination of optimization and lossy compression algorithms, the online image optimizer reduces JPEG, GIF and PNG images to the smallest size while keeping the quality required. An image that has been compressed takes less time to load on a web page, which is the primary benefit. In addition to making computers more efficient at processing image data, reduced loading times may make website visitors more satisfied.

List of four online sites you can use to compress images 

You can speed up your photography website by optimising your images. Additionally, faster loading speeds mean better search engine rankings! These are the best free tools for image optimization and compression that we are going to share in this guide.

1. JPEG Optimizer

You can upload and compress your photos online with JPEG Optimizer. As its name implies, this tool works only with JPEG files. One of the great things about JPEG Optimizer is that you can resize your images before you optimize them. Using this online platform, you don’t need to split your workflow into two steps to resize your images, which will save you even more loading time.

2. Optimizilla

You can use Optimizilla to compress both JPEG and PNG images, and you can reproduce great quality in your images with the smallest file sizes. You can upload up to 20 images if you choose Optimizilla. By using lossy optimization, the tool adds each image to the queue and compresses it automatically.

3. Kraken.io

The Kraken.io bulk image optimizer is another option. Kraken.io optimizes JPEG, PNG, and animated GIF files in bulk. Kraken.io optimizes your files for the lowest size, unlike other image optimizers on this list. Thus, Kraken.io will always return the smallest image file size possible. Once the compressed photos are ready, you can download them one at a time or in a .zip file.

4. Optimole

The same people behind ThemeIsle created Optimole, a popular plugin for image compression and optimization. It helps you to compress, resize, lazy load and host your images on their CDN. You can optimize unlimited images with the free Optimole plugin within the monthly limit of 5,000 visits. In case you need more, you can choose from the premium plans.

Compress images using Photoshop

Open Photoshop and select an image from File > Open. When you click on image size, you can enter a new pixel dimension, document size, or resolution. By clicking okay, you will accept the changes to the Resampling Method.

Compress images on an Android phone

From the Play Store, download and install ‘Compress image size’, then select a photo to compress. If you want to see the original image size, you can do so. To reduce the size of an image, toggle the Quality toggle on and use the slider.

FAQs

  1. What is image compression?

The purpose of image compression is to minimize the size of a graphics file while maintaining a high level of image quality. It is possible to store more images on a given amount of disk space or memory when the file size is reduced.

      2. What are the benefits of image compression? 

Image compression reduces hard drive space requirements and maintains the image’s physical size unless the image’s physical size is changed in an image editor. With the use of the internet, you can create image-rich sites without using much bandwidth or storage. A significant amount of money can be saved by doing this. There is a significant decrease in storage expenses when compressed files are compared to uncompressed files.

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