PDFTeX – How to Create Pop-up References in PDF Output

Question

I once saw a maths journal which offered PDFs of published papers, where the bibliographic references were formatted as PDF annotations: if you moused over a reference in the text, the bibliography entry would appear in a pop-up window, without having to jump to the end of the file and inevitably have to spend ages re-finding where you were in the text.

Does anyone know of a way of producing this effect automatically using BibTeX?

Answer 1

Pop-up annotations can be made using the pdfcomment package, but I haven't seen an automatic way yet. But you could redefine a cite macro to use, for instance, \pdfmarkupcomment for the output.