LiveCycle ES4 pdf file crashing Safari bowser in Ipad when opened in Apple IPAD 1 with IOS 5.1.1

[Former Community Member]

When I am trying to open PDF file which is Encrypted with LiveCycle ES4, Safari Browser in Apple IPAD 1 with IOS 5.1.1.

Please Suggest me the way to open directly in Ipad.

Adobe reader is Installed.