Image panel. When changing the level of compression, some adjustment must first be made to the quality of the image prior to adjusting the level of compression. This reduces the impact on image quality. How to Compress a JPEG: 3 Ways Apr 21, 2023 – 6. How to Compress JPEG? Compress a JPEG Select a picture that you want to save as JPEG. Right-click the same image and click Open With. Select the Image Tools Mode tab, and then click Compress Image. Do one of the following: Compress images for insertion into a document. Choose Photo & Picture Resized from the Select Tools menu or select Photos. Select File > Open with Photo & Picture, and then select either Photos.jpg or Images.jpg. Do one of the following: When making the JPEG image available for a download, choose Image > Download As. How to Reduce the Size of a JPEG — 3 Ways Apr 23, 2023 — How to Reduce the file size of JPEG file · Compression levels: The file size of a JPEG is determined by the size of the JPEG image. The JPEG size is typically reduced by 20, or 30,% in the default compression setting. When using Photo & Picture Resized it is possible to change the compression level. The amount of compression is controlled by the slider in the Image Tools mode. · JPEG format: JPEG images are compressed using the Image Compression level setting. JPEG images can be saved in JPEG format. In most photo image editing applications the default setting of 20% compression makes a great start, but you might have to open and adjust the image to reduce the size; or you might want to select the image and click Open With to use the Image Tools mode. · JPEG quality: The image compression quality (Compression Factor) determines the average effect size in bytes. When the compression quality is at 25% of its maximum value, an image has a compression factor of 1. When the compression quality is 40% of its maximum value, the image has a compression factor of 4. When the quality is at 75% of its maximum value, the image has a compression factor of 7. When the compression quality is 150% of its maximum value, the image has a compression factor of 1/7. · Number of files: The number of files in a JPEG image is determined by the image size. The file size is the sum of the size of each file.