If you generally print a lot of PDF files at a time, it can be tedious to open each file individually and deal with the print dialog box for each file. Thankfully, OSX provides you with a faster way. Open the Print & Fax preference pane from OSX’s System Preferences icon in your Dock and select the printer you’d like to use to print the PDF files. Once the printer is selected, drag it to your desktop, which will create a Desktop Printer. Now, when you’re ready to print your PDF files, simply drag & drop them all on the newly created Desktop Printer icon and a printer dialog box will open and allow you to print the files. The great part of this tip is that neither Preview nor Acrobat Reader will open in order to do the work. This tip works with all file types, except that PDFs are the only file type that doesn’t require the host application to actually open in order to print.