ZenFotomatic can save your output photos as JPG or PNG...
JPG is the most commonly used photo format. It gives a good balance between quality and file size.
A few quality options are available...
High qualityRecommended for most cases, a good balance between quality and file size.
Medium qualityResults in a smaller file size.
Maximum qualityResults in a larger file size.
Custom file sizeSet the JPG File Size to a desired value (in kilobytes). ZenFotomatic will try to save the JPG file at this size if possible.
PNGs are saved as 24 bit true colour. They are lossless in quality, though larger in file size.