A-PDF Split is a very simple, lightning-quick desktop utility program that lets you split any Acrobat pdf file into smaller pdf files. It provides complete flexibility and user control in terms of how files are split and how the split output files are uniquely named. A-PDF Split provides numerous alternatives for how your large files are split â?? not just by pages, but also by bookmarks to various levels. A-PDF Split also offers advanced defined splits that can be saved and later imported for use with repetitive file-splitting tasks.