Adding form element to output

Poppler takes care of almost everything, I simply added the form tags at the end of every page.
I didn't remember adding this, so I checked with "git blame" on share/pdf2htmlEX.js.in and I've got this : 13873d99 share/pdf2htmlEX.js.in        (Lu Wang         2013-03-31 17:41:38 +0800   1) /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab filetype=javascript : */