Compatibility: macOS 10.10 or later 64-bit
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.
Mac App Store: https://geo.itunes.apple.com/app/id537211143
Supported Formats JPEG PNG GIF BMP TIFF 
TO MAC USERS: If RAR password doesn't work, use this archive program:
RAR Expander 0.8.5 Beta 4 and extract password protected files without error.
TO WIN USERS: If RAR password doesn't work, use this archive program:
Latest Winrar and extract password protected files without error.
