LaTeX and PDF Tips
From the access logs it's obvious that the latex and pdf tips page (in Japanese) is one of the most popular contents besides my profile and seems like it's somewhat highly page-ranked by google, so I put here an English translation.
Equalize the Column Heights of the Last Page
Concatenate Two PDFs
pdftk command lets you concatenate two PDFs such as an abstract and a poster draft. Do as follows:
$ pdftk input_filenames output output_filename
Note that output is a command option, which you should put as-is.
Create a PDF with the US Letter Size
If you want to set the size of your PDF to US Letter (also referred as simply 'Letter' size)
but you don't know how to tweak the style file,
the paper option of
dvipdfmx for CJK people) can help you.
$ dvipdfm -p letter input.dvi