It's easy to have a photographic memory.It's my party trick and people always gasp in amazement when I do it.It's such fun!
All you need is a purpose, ie: I want a photographic memory because...(your reason)

My purposes for a photographic memory could be:

~ I want to photographically remember this whole book so I can impress my friends with my ability to recall any line they test me to recall.

Or whatever your reason is! It really is all about purpose.When you are at one with your purpose then you'll really surprise yourself.

Personally for many books I don't set my purpose to photographically remember the whole of the book, because remembering everything word for word is just like conventional reading, which as we know as photoreaders, is not the best way to deal with most books.For books on poetry, it can be good to conventionally read the words so one can really appreciate how the words make one feel.
For books that contain many facts that you will need to recall, it is good to set a purpose of, for example: I want to photographically remember all the words on page 170 of my book on french, because I will be tested to recall that whole page word for word.

It's just about getting your purpose lined up with your end goal.Be aware of whether you're lined up or not, for that is the only single thing that determines whether you succeed or not.It really is remarkably simple and easy once you've got that sorted.

As always, have fun with it!