cant find a last page viewed on iphone

I have made a PDF document in adobe acrobat pro with links throughout the document to other pages for mobile viewing.  The links work great on the mobile version on both android and ios.   The android version gives me the option to go back  to the last page viewed by pressing the page number.  I cannot find this option on iphone.  Am I missing something or is this not available in ios?  Thank you in advance for help with this issue