Compress JPG: 6 Proven Methods for Optimizing Image Size

JPG images are excellent for storing photos and graphics online because they balance quality and file size. However, sometimes these files can be too large. It makes them slow to load and challenging to share. That is why it is necessary to compress JPG images. This post will list different methods to compress JPG files effectively. Keep reading to learn how these works!

Part 1. Will the Image Quality Decrease When You Compress JPG

Yes! The image clarity will decrease when you compress an image, specifically JPG. Compression removes some image data to make the file size smaller. Because of that, it can result in a loss of detail and clarity, especially if the compression is high. However, with careful compression, the loss of clarity may only be noticeable to some viewers.

Part 2. The Best Way to Compress JPG Free Online

If you prefer to compress JPG images without installing anything on your device, the AVAide Image Compressor is the best option. It is accessible online, works on any web browser, and is available on any operating system.

AVAide Image Compressor can compress up to 40 images with a maximum of 5 megabytes each. Its impressive feature is that it can compress your image by 50-80% within seconds while maintaining clarity. It is also free to use, so there is no need to pay to get your compressed photos.

Step 1Go to AVAide Image Compressor's official website using your web browser.

Step 2Import your JPG images by clicking the + Choose Files button or drop them into the interface.

Step 3The compression process will start the moment you import your images. As per the photo, from 55.78 KB, the image file size became 30.49 KB after compression.

Step 4Press the Download button to save your reduced JPG image in your local folder.

Part 3. 3 Ways to Compress JPG Files on Windows/Mac/Linux

1. MS Paint

MS Paint, a Windows built-in platform, can help you compress JPG files by percentage or pixels. You can tweak the dimensions by changing the horizontal and vertical values while maintaining the aspect ratio. But that is not all; MS Paint provides a broad range of editing functionalities. You can do many things to your image, such as cropping, rotating, drawing, adding shapes, applying colors, and more.

Step 1Open Paint using your Windows computer.

Step 2Head to the File menu and select Open to import the JPG files you desire to compress.

Step 3Click the Resize button and select whether to resize by Percentage or Pixels. Then, enter a specific percentage or pixels in the Horizontal and Vertical options. Click the OK button to save the changes.

Step 4Head to the File menu again and select the Save As button.

2. Preview

Preview is a Mac-built-in platform that provides a simple and efficient way to shrink JPG files. It can help you compress your image files by changing their dimensions, including height, width, and resolution. Also, it provides an option to see the compressed image size to see how the changes affect the image size before saving.

Step 1Open the Preview using your Mac computer.

Step 2Head to the File menu, select Open and import the JPG files you want to compress.

Step 3Click the Tools tab and choose Adjust Size from the options. Here, select Percent or Size as the adjustment value. Then, change the Width, Height, and Resolution. After that, click the OK button.

Step 4Check the resulting size section to ensure the image fits your needs. Navigate to the File menu again and pick Save as to create another copy of your image file.

3. Curtail

Curtail is a free and open-source image compression program accessible on Linux computers. It employs several open-source projects to provide effective photo compression. This program supports bulk image compression and allows you to select lossless and lossy compression. It also provides an option to preserve metadata and file attributes. However, the installation process takes too long, which requires time and patience.

Step 1Launch Curtail using your Linux computer.

Step 2Depending on your needs, pick between Lossless and Lossy compression.

Step 3Select the JPG files you desire to compress from the file manager or drop them into the interface.

Step 4Curtail will begin compressing your JPG files automatically the moment you upload them. It will present a summary containing the file name, old and new size, and the amount of space you have saved.

Part 4. 2 Ways to Reduce JPG Size on iPhone/Android

1. Compress Photo & Pictures

If you are looking for an application on iPhone devices that can help you reduce JPG file size without reducing image quality, it is Compress Photo & Pictures. It has a built-in compression setting to reduce photo dimensions. You do not need to enter a specific size; you can use the slider to get your preferred image size. However, the free version contains advertisements and can only compress limited files.

Step 1Get Compress Photo & Pictures by New Marketing Lab, Inc. on your App Store.

Step 2Press the Select Photos to Compress from the options and select the JPG images you desire to reduce the file size.

Step 3Change the Photo Quality and Photo Dimensions by moving their sliders under the Compression Settings.

Step 4Once done, press the Compress button to reduce the size of your images.

2. Photo Compressor and Resizer

For Android devices, the application designed to reduce JPG size automatically or manually is Photo Compressor and Resizer. It supports bulk compression, which is beneficial if you want to compress many photos. It offers two compression modes: Auto and Compressed to the specified size. However, every step contains an advertisement. Unfortunately, there is no way to remove these advertisements from the application.

Step 1Download Photo Compressor and Resizer by Pocket App Maker on your Play Store.

Step 2Press the Compress photos from the options and select the JPG images you desire to reduce the file size. Once selected, click the NEXT button to proceed.

Step 3Put a bullet beside the Auto or Compressed to the specified size option to reduce the image file size.

Step 4Finally, click the Compress button to start the process. After that, you can see the before and after image size.

Part 5. FAQs about Compressing JPG

How much will the quality decrease when I compress a JPG?

It depends on how much compression is applied. If you apply a higher compression level, expect that the quality loss is noticeable.

Can I control how much I compress a JPG photo?

Many image compression tools allow you to choose the level of compression you need, like Photo Compressor and Resizer.

Are there any ways to compress a JPG image without losing quality?

Yes! AVAide Image Compressor can help you compress JPG images while maintaining their quality. The compressed image output will still look clear, sharp, and vibrant like the original.

Does compressing a JPG photo affect its color accuracy?

If you apply a high level of compression, there might be a slight loss of color accuracy or introduce artifacts.

Does compressing a JPG image change its aspect ratio?

No! Compressing a JPG image does not change the aspect ratio. The aspect ratio remains the same unless you resize the image during compression.

By Jane Pineda on Jul 03, 2024