PDF page count and empty space

[vincevincevince]

Two questions:

1) How can I find out the number of pages in a PDF document (preferably with PHP, although some shell commands might be possible)?

2) How can I find out how much blank space there is on the last page (is that possible?). If it helps the pages are being generated from LaTeX files with pdflatex in a two column layout. I want to select an appropriate amount of filler material for any empty space.

[ahmedtheking]

Try: this [66.102.9.104]

[edited by: jatar_k at 5:46 pm (utc) on Oct. 30, 2006]