Are you viewing the PDF document (your bank statement) in Safari (the default web browser)?
Please see the Safari section in one of the following FAQ documents.
- For iPad, see How to get PDF documents into Adobe Reader for iOS (iPad on iOS 7 version)
- For iPhone, see How to get PDF documents into Adobe Reader for iOS (iPhone on iOS 7 version)
Please make sure that Adobe Reader for iOS is already installed. Safari does not show other apps like iBooks and Adobe Reader as the Share options, which is unconventional.