Originally Posted by donB006
Now I think getting close to the original pagination is all that would be possible.
The is no such thing as the "original pagination" in a standard ePub. Anything and everything you see refering to "pages" in your ePub reader is a fabrication created by the particular ePub reader (device or software) that you are using. They don't exist in the ePub itself.
The common "page" created in the mind of ePub readers is an artificial concept based on a certain amount of data (commonly 1024 bytes I believe) that was chosen to create a total number of "pages" similar to the number of real pages that would exist in a commonly sized and formatted printed book. Since there is an extremely wide range of paper sizes, margin widths, font metrics, ... there is no way for this approximation to be particularly close to any particular printed book.
Creating a PDF with a quantity of pages that approximates the faux "page" count your ePub reader invents for itself is a matter of setting the page size, margin widths, and font metrics (point size, ...) in the PDF creation app, generally by trial-and-terror, until the page count is in the range you desire.