PDFs have always been a bit of an impediment to true open access
beyond simply reading the articles in question. No longer.
Repositories and libraries (and publishers) that yearn to offer the
same functionality – and more – for PDFs as for html, ought to have
as default (at least provide links to) this free scientific pdf-
reader developed at the U of Manchester: getutopia.com
The reader can even be used as collaborative software, as comments
etc. can be shared, and different versions of an article be
automatically recognised as *versions* of the same article rather
than be seen as entirely different articles just because the lay-out
isn't the same or there are small differences in the text.
Further info in this article: http://www.biochemj.org/bj/424/
bj4240317.htm
Jan Velterop
