Resize JPEG Image

icon Nov 12, 2019

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How to Resize a JPEG Image?

Probably, every other PC user is familiar with JPEG – an image format that compresses pictures with minimum visual quality losses. JPEG files are very convenient when it comes to sharing separate or bulks of images online.

Resize JPEG Image. Left image – initial, right – after resizing.

In essence, the format implies a method of compression where image elements appear partially as the whole file gradually loads up. The intensity of JPEG compression can be regulated to achieve the necessary size and visual sharpness in the picture. Such files can be saved as JPG, which is, basically, the same thing but compatible with older systems.

Let’s take a more detailed look at the specifics of the JPEG format, consider its pros and cons, compare it with newer PNG, and see how to resize the JPEG file with the help of available software tools.

What is JPEG?

Before figuring out how to resize JPG photo, we suggest clarifying the history of the format as it is.

JPEG files were first introduced back in 1991 by specialists of the Joint Photographic Experts Group. Today, it is the leading image format in terms of global compatibility and use.

From a practical perspective, the format manages to employ quite an intensive level of compression while saving high color depth volumes of 24 bits. The higher the compression rate goes, the smaller the image becomes and the worse its quality gets.

On the other hand, JPEG doesn’t support transparency adjustments, which indicates that it’s not good enough for saving logos, pictures with text, and such. JPEG images are compatible with practically all existing operating systems and digital environments out there. Such files can also be converted into any other formats if need be.

Pros & Cons of JPEG (JPG)

Finding out how to resize JPG, you should also get to know about the basic benefits the format provides as well as its downsides.

Pros:

  • advanced, adjustable level of compression with insignificant quality losses;
  • the moderate size of files;
  • compatibility with the vast majority of browsers, graphic & text editors, operating systems, web services, etc.;
  • a proper view of realistic images with numerous color transitions.

Cons:

  • at the in-depth rates of compression, the image crumbles into 8×8 pixel blocks, which significantly harms the overall quality;
  • not adapted well enough for work with text or monochrome graphic images with distinct edges;
  • no transparency support;
  • recovered after compression files become worse in quality after editing.

As such, the JPEG format can be most fruitfully used for processing and saving full-color images that depict real-life objects as well as for sharing digital graphic content online.

What is the Difference Between JPEG & PNG?

If we compare the format in discussion with another renowned solution – PNG – we can see that either format can fit particular needs when it comes to saving image files.

Thus, you better go for JPEG if you need to upload a photo from your camera to social media. The files will be lighter in size and clear in delineating real-life objects. If you make a screenshot or save an image for further editing or archiving, PNG might be better. The files will be somewhat larger in size, but you won’t have to worry about any quality losses when it comes to editing the image.

Most pictures created manually by web designers (including logos) are usually stored in PNG. Additionally, such files support transparency adjustments, which may be a strict necessity in some cases.

How to Resize Image in JPEG Format?

Now, let’s find out how to resize a JPEG picture via one of the most traditionally used photo editors – Photoshop.

Step #1

In order to resize a JPG image, first, open it – you can use the following combination – Alt+Ctrl+I.

Step #2

Click “Image” in the upper toolbar and pick the “Image Size”

Step #3

Now, view a set of parameters in the “Dimensions” drop-down menu.

Step #4

In the list of “Dimensions”, you’ll see default image scaling options, picking which, you get to save maximum quality in the source image. You can also specify custom parameters, but be careful, as the end results may be unpredictable.

Step #5

Click “Ok” and you’ll see the “Smart Sharpen” Photoshop feature in action.

That’s it! A bunch of simple steps to get an image in the required format and size with high visual quality.

Nevertheless, maybe you’re interested in how to resize a JPG image fast, for free, and without any additional software? There is a surefire way for you.

Resizing an Image in JPEG Format for Free

Your ultimate question – “How can I resize a JPEG free?” is resolved with the help of freeware, based on deep machine learning and Generative Adversarial Network (GAN) principles Image Upscaler. Use it to resize the JPG files, zooming them by up to 4x without sacrificing any image quality.

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