As it is known when optimizing JPEG format, the quality of photos can dramatically fade and the optimizing process is done with losses. However, PhotoBulk uses smart lossy compression techniques to reduce the file size and doesn’t deteriorate the image. The software allows optimizing images affecting their quality minimally. See more details in the Format Settings paragraph.
To change the optimization level drag the slider. A higher level of optimization produces better results but may take more time.
Note: Only JPEG and PNG files are optimized.
Tip: To reduce the file size even more select metadata settings in the sidebar and choose “Delete All” from the drop-down list. PhotoBulk will erase all the metadata found in an image to make the image file as small as possible. By default, PhotoBulk preserves all the metadata.