eBooks use the EPUB (.epub) file format for an e-book reader application or a dedicated e-book reader. E-book readers allow for text to potentially be changed to make reading on a screen easier. By … [Read more...] about What is the difference between an eBook and a PDF?
Be sure that you are using the latest version of Adobe Reader. (https://adobe.com/reader) Also, occasionally, Adobe reader will attempt to update itself when opening a file, and you may need to … [Read more...] about Why won’t my PDF open?