How much can you compress a JPEG?

If you wish to compress a picture without losing noticeable quality, you can compress it by 50%-70%. The image content will impact the compression amount. JPEG compression is lossy, and thus, the image quality is traded for file size.

Is JPG already compressed?

JPG already uses a lossless compression algorithm to reduce the image file size. It discards details such as sharpness and texture.

How to compress JPEG on iPhone?

There are many online compressors to complete JPG file compression, such as iLoveIMG and Pi7 Image Tool. Locate the image compressor tool, upload your JPG files, adjust the compression options, and begin compressing. Or, you can install a JPG compressor app from app stores to reduce the JPEG file size on your mobile.

4 Best Ways to Compress JPG Files without Losing Quality

Introduction:

Are you trying to compress images without losing quality for uploading them to websites? Alternatively, you need to reduce your JPG file size to meet the email size limit. The compression also saves disk space. Well, there is a vast number of software tools for that, but it's hard to tell which are good to use and reliable. Based on our experiences and tests, we've compiled four ways to demonstrate how to compress JPG files without losing quality.

Note: Please be aware that JPG or any image compression is actually a trade-off. Any compression, regardless of the tool used, loses data and clarity. You can only balance the quality and file size. So, ensure the highest quality of your original files to improve the resulting quality.

Way 1: Compress JPG Files without Losing Quality Using SwifDoo PDF

SwifDoo PDF is one of the best JPG file size reducers available to compress JPG files on Windows. While its name implies it's a PDF software, it's more of an image converter and compressor. It allows you to batch compress multiple JPG files at once, and also compress PNG, TIFF, and other images without curving. In addition, you can utilize it to compress PDFs.

Here is how to compress the JPG file size using the SwifDoo PDF application straightforwardly.

Step 1: Once you've downloaded and installed the software, open your PDF file with it.

Download SwifDoo PDF's Image Compressor

Step 2: Click Convert > Image Converter to open the image toolbox.

Step 3: Select Compress Image in the left pane, add your JPG files, and specify the output path.

Step 4: Click the Start button to compress the JPG files in seconds and view the compressed sizes.

SwifDoo PDF will reduce the file size without sacrificing much quality under a proper compression strength. You can follow the curated steps to compress a file in JPG format, as well as in Word, PowerPoint, Excel, or other formats, by choosing a different tool.

Download SwifDoo PDF All-Around Compressor

Way 2: How to Compress a JPG File with the Photos App

Windows devices come with a free JPG file compressor, the Photos app. Designed as an image viewer, the built-in app allows you to cut the quality or pixels to compress JPG files. You can also adjust the resizing percentage to make the image smaller. The drawback is that you can only process 1 picture at a time.

Learn how to use the Photos app on your PC to compress a JPG file for free.

Step 1: Right-click the JPG file you wish to compress, and choose Open with > Photos.

Step 2: Right-click the opened image and choose Resize image in the context menu.

Step 3: Drag the slider in the pop-up window to the left and check the displayed new file size.

Step 4: Once you have determined the most suitable file size and quality, click Save.

Step 5: Select a location and assign a file name to compress the file size of the JPG image.

Way 3: Reduce JPG File Size in Mac Preview

One approach you can use to compress JPG files on a Mac is Preview. The Mac native program is essentially a photo and PDF viewer that allows you to perform simple edits on the files. It can export images or screenshots to PDFs and separate PDF pages.

See how it can be your free image file compressor to reduce the size of a JPG file without losing quality.

Step 1: Double-click your JPG file, and it will open in Preview by default, unless you have another image app set as the default.

Step 2: Go to the File menu to select Export in the drop-down list.

Step 3: Select JPEG from the Format drop-down button.

Step 4: Drag the quality slider and preview the file size until it meets your needs.

Step 5: Enter a file name, and click the Save button to accomplish the file compression of the JPG.

Way 4: Reduce the Size of JPG Images with Pi7 Image Tool

There is a well-established site that will compress JPG files online for free. Pi7 Image Tool is a multi-purpose web app that allows you to resize, crop, convert, and downsize images. It can also combine JPG images into one PDF. You don’t need to sign up or provide your personal info.

The best part is that the free tool can compress a JPG file to a specified size value, such as 200KB, 50KB, etc. Dive into the step-by-step tutorial.

Step 1: Choose the Compress Image tool from its top bar.

Step 2: Click the Select Images button to upload the JPG file.

Step 3: Type the desired size in KB into the Size box, and click the Reduce Size button.

Step 4: A while later, click the Download button that appears to download and save the size-reduced JPG.

Final Thoughts

Can you compress a JPG file to a smaller size without losing quality? The higher the quality, the larger the file size; conversely, the smaller the file size, the lower the quality. High compression ratios can lead to the loss of some details. It's difficult to say which settings are the best. However, you can choose the optimal level according to your intended use, such as web page design.

Typically, people aim for a nice balance between 40% and 90% quality. That may vary from software to software.

SwifDoo PDF can help compress .jpg files to achieve a minimal file size while maintaining a maximum acceptable quality.

Download SwifDoo PDF/Image/Word/PPT Compressor

If you want the convenience and refuse to download software, you can compress files in JPG with online tools.