I read quite a few articles per month. I always have problems because I'm always walking with a bunch of printed papers and I have trouble looking for highlighted parts.
Until, last month. Last month, I figured out that EPUB files integrated awesomely with iBooks, allowing me to highlight stuff and easily retrieve/search later.
My problem now is to find articles in EPUB. They just don't exists. So I took a shot using some online tools. Although they work for regular textual books (such as regular full-page literature, e.g. normal books), they do not work as expected for PDF articles (usually with 2 columns of text).
Anyone know a good tool to do this?