Welcome to the forums. The only method I know is to take screen shots of the images you wish to refer to off-line. Get the image up, and press the main bottom button and the power off button simultaneously. The screen view will be captured in the camera roll.
HTH
Now, I suggest that one of the first things you do is to read the forum rules etc. Links to useful sections follow :-
The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.