Hi, I have learned a lot from this forum to make use of my EE. I found a way to use e-reader in a landscape mode.
First , split the every page into two pages . This step can be done by using “Briss suggested by fgruber, or “A-PDF Page Cut suggested by AguaKate, or “PaperCrop(But I don’t know how to use this one, though).
Second, use "PDF-Xchange viewer " or other pdf programs to rotate the page. In that program , select Document-- Rotate Pages. In rotate pages popup to rotate the pages clockwise 90 degrees, and save the file. In this way , all pages in this file are landscape pages.
Third. export the file to the entourage edge , use e-reader to open it , and all the function works well with this pdf files, all highlights, annotates can be saved like other "normal" pdf files.
Besides, I am not sure if it's my illusion . I found that the hightlight function works better comparing to using it on other portrait pages. I can select exactly the words or lines I need in this landscape pages. And there is no need to zoom in or zoom out pdf in E-reader, save a large amout of time and become more efficient in reading pdf.