How can I set up an iOS compatible network pdf printer?
1 - Install PDFwriter (free). It will allow you to add a new printer in Settings > Printer &amp; Scanners > + button. When you print using this new printer, it will generate a PDF file under /Users/Shared/[username]/

2 - Install handyPrint (donationware). It will allow you to share the virtual PDF printer with the mobile devices.

You might need to disable or create a custom rule on the Mac's firewall so that the devices will find the printer. Change this under Settings > Security &amp; Privacy > Firewall.

PS: I have only used on Mavericks and iOS 6, but I'm 97,21% sure it will work on Snow Leopard and iOS 5.

PPS: There might be similar programs to acomplish this, you don't really need these ones. If you want to see alternatives, search for "virtual printer mac".