PhotoBulk 2.4 | macOS | 17 mb
PhotoBulk is an image editor Mac app that is meant to dramatically simplify batch image editing: batch rename images on Mac, optimize photo, compress image file, add watermark. Additionally to already mentioned, PhotoBulk is also a perfect PNG to JPG converter for Mac and bulk image resizer Mac app.
Supported Formats JPEG PNG GIF BMP TIFF Compatibility: macOS 10.10 or later Mac App Store: https://geo.itunes.apple.com/app/id537211143 
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