LaTeX:Tips Tricks

convert hsumanim.gif frame.png
 * http://www.ctan.org/tex-archive/macros/latex/contrib/animate/

example (open in Adobe Acrobat)

buy research papers
 * http://emacsworld.blogspot.com/2008/07/quickly-creating-latex-tables-in-emacs.html
 * http://emacsworld.blogspot.com/2008/05/extracting-specific-pages-from-pdf.html