You can use Mapsofts 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. Tryout is stamped on your PDF document.