What are some alternatives?
When comparing Phatch and PhotoBulk, you can also consider the following products
XnConvert - XnConvert is an easy image converter for graphic files, photos and images available on Windows...
FastStone Photo Resizer - Convert and Rename images in batch mode Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000
bulkWaterMark - bulkWaterMark is a batch photo watermarking software for Microsoft Windows.
Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.
ImageMagick - ImageMagick is a software suite to create, edit, and compose bitmap images.
Batch Photo Watermarker - This software allow you to add text or sophisticated graphic watermark or logo to all your photos...