Would like to inform you that for rotating the PDF files on your Mobile Devices you should have online subscription (for PDF pack) so that using feature of Organize PDF you may rotate the files .
You would need the Adobe Acrobat Pro DC (not Adobe PDF Pack) subscription to use the 'Organize Pages' feature to rotate each page. In addition, the Adobe Acrobat Pro DC subscription includes all of the features available for the Adobe Export PDF and Adobe PDF Pack subscriptions as well.
For more details, please go to My Account and tap Adobe Acrobat Pro DC in the Acrobat Reader app on your mobile device.
Alternatively for iPad/iPhone, you can use the orientation lock. In iOS 9,
This will prevent the UI from rotating when you rotate the device. If you get the document into the orientation you want and then freeze it, the document will stay in that orientation.
Hope this helps.