Coherent PDF Command Line Tools and C/C++/Python/Java/.NET/JavaScript API give you a wide range of professional, robust tools to modify PDF files. All based on our own PDF technology and with a comprehensive manual. PDF Editing Features (Full features list) Quality Split and Merge, keeping bookmarks. Extract pages. Split on Bookmarks. All operations can apply to any page range, e.g 1-3,1-end or 6-