No difference in the image quality though. To our surprise, the file size was larger than the JPEGmini compression – 1.035 MB. Out of curiosity, we took the same original file, opened it in Photoshop and saved it with “save for web” at 80% quality. We put the original and compressed files side by side, and tried to look for any type of visual difference, but couldn’t find any. The optimization reduced the file size by 1.390 MB, which is almost 60% of the original size. ![]() The app allows you to choose from the Small (960×720), Medium (1600×1200) and Large (2592×1944), or set your own Width or Height.īack to business, it took just a few seconds to get the file compressed. The application will either automatically replace the original file with the compressed one, or you can choose to export all compressed files into a specific folder, even set a certain size preference. You have two options available in terms of exporting. We made a copy of our original image, dragged and dropped it into the JPEGmini application. It allows you to compress up to 20 images per day for 10 days. There is also free trial if you want to test it out first. We installed the JPEGmini app, it’s available on their website. Of course, we ran some test of our own before even starting to write this article, and here’s how it went: Even when viewed at 100% on a monitor or printed at 200 dpi and examined under a loupe, both files still look the same, which is impressive! The JPEGmini results have been tested multiple times, and experts can’t tell the visual difference between the original files and the JPEGmini compressed files. This compression technique uses an algorithm that imitates the human visual system – it ensures that the overall look of a photo remains the same while removing redundancies from within the file structure. Then, a unique JPEG encoder adapts the JPEG encoding process to the native file, creating the most compact representation of it. First, an image quality detector analyzes the JPEG file to asses how much compression can be applied without causing any perceivable reduction in quality. The application is based on a two step process. If you’re still wandering what type of voodoo did the creators use, to get a 50MP image (with the Pro version) reduced by 80%, without any visible change in quality – the answer is none. The application is based on a two step process.
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