Short description of Append PDF COM Component 1.07: Append PDF software automates the process of appending multiple PDF files, you can append an existing pdf file to another file or a list of files, the result file is optimized for space, PDF Size optimization is over 50% better than appending files in Acrobat and using other tools that use Acrobat to append, Append PDF also retains file version information. In our tests the appending speed is up to 70 times quicker than Acrobat 7 append + save!