Creating a .jpeg image of a page view in history just doesn't seem to me a good idea to store a page. If you haven't emptied your cache since you visited the page, it should still be there. If so, open it again and save it to your hard drive.
You can try changing your screen resolution to make the image more viewable.
I have an iMac OS 10.5.8....I was going through history on Safari...u know how the page shows up in that virtual way...I needed access to what was on the page, and can no longer get it on web. So I made a jpeg out of it. Problem is the text is too blurry to read. Is there anything I can do to sharpen it up?