There are 4 types of splitting modes: "Into single-paged files", "By groups of pages", "Delete certain pages", and "By page ranges". User can choose one that meets the requirements, use the Preview button to make sure everything looks fine, and even merge the output files back together if the document got split in a wrong way. In both "Split" and "Merge" modes users can set permissions (editing, printing, copying), password, title and author values for the output files. In the "Split" mode it's also possible to set the prefixes for the filenames Icecream PDF Split & Merge supports selection of separate pages and intervals of pages for merging. This can be set in the "Pages" column while in "Merge" mode. The program features an in-built PDF viewer that lets the users preview files prior to applying any changes. One can choose between 3 saving options (subfolder, original folder and any folder of choice) in the Split mode; merged files are saved in the same folder.