Print from your iPad, iPhone, or iPod Touch to any printer without AirPrinter or another app. O'Print is a Windows utility that allows the Windows PC to be AirPrint-Compatible (also as an AirPrint Activator for Windows). You do not need to install apps or buy a new AirPrint printer. ANY existing printer can be connected to Airprint from an iPad, iPhone, or iPhone touch in addition to basic printing from Safari, Mail or Photo. O'Print lets you print to PDF and to your dropbox. There is no client limit and no shared printer limit. All iDevices and all printers can be utilized in O'Print. How Does O'Print work ? - First, O'Print gets all printers which are already installed on the Windows PC. - Next, the user will decide which printers they want to share for the appropriate iDevice by simply selecting it in the O'Print control panel. - Finally, O'Print will announce those shared printers (by Apple Bonjour) and display them on all iDevices which within the same LAN with the Windows PC. Then AirPrint from your iPad now.