Acrobat Pro Plug-ins & Setup Instructions for installation of the plugins are included in the ZIP file. Contact us with any questions you may have. Plug-In for Acrobat 10 & 11 – Windows ZIP2.6mb Plug-In for Acrobat 8 & 9 – Windows ZIP2.3mb Plug-In for Acrobat 10 & 11 – Mac OSX ZIP2.0mb Plug-In for Acrobat 8 & 9 – Mac OSX ZIP2.5mb