you can use mapsoft’s documerger tool to merge material from an existing pdf file into another pdf file. documerger merges a selected page from one document into another document. the document from which material is to be extracted (the source document) can be any length: but only one page can be extracted from it at any one time for merging into the target document. this tool is very useful when adding a logo from one file to another.

interesting things happen at the boundary between order and chaos, where the qualities of both states are evident. there is enough order to retain information, and enough chaos to provide variety. a good way to explore this interesting phenomenon is to study a famous cellular automaton called "conway's game of life" which inhabits the edge of chaos region. this screensaver allows you to explore the edge of chaos through the game of life.