how to join several wav files how far away is it combine powerpoint into one multiple html into one pdf combine mkvs into one file multiple lines into one merge excel files into one combine xlsx into one put multiple jpgs into swf join many images into one file join xls files into one combine into one pdf put all cells into one combine tiffs into avis join multiple lines into one merge 2 pdf pages into one merge multiple pages into one join multiple ppts into one merge lines into one line how do i put tiffs together