When you're done beautifying your images, you can save them all quickly using the "Batch All.." button in the lower right of the Picturesque window. This will bring up the save panel. Every image in Picturesque will be saved with the same effects applied
Batch Saving options:
Format
Transparent background - Recommended. This option will make the background of your PNG or TIFF transparent to be used on any background. With this option off, your background color will be drawn instead. This option cannot be applied for JPEGs, which do not support transparency.
Quality - Higher quality will produce a larger file. Only used with JPEGs.
Fit into - You can specify certain dimensions that Picturesque will scale your images down to fit into. Picturesque does not support non-proportional resizing.
Append suffix - Add a suffix to your image name.
Number files - Add a number to your image name starting from the specified number and counting upwards.
Hide file extension - Hides your images file extension. For example, it would be named "Picture", as oppose to "Picture.png"