How to stitch two PDF pages together as one big page?
I have two 36" by 48" posters (LaTeX) that I want to append into a single 72" by 48" poster (stack vertically). Browsing around SO and GS documentation, I have no clue (I'm not a CLI wizard). How can I do this? (Also, the process should not compress the raster images lossily, because this will be printed 2400*1200 DPI.) Since the OP didn't provide (a link to) the original input posters, this answer will proceed in three steps: Create 2 dummy posters as input for step 3 Create a LaTeX document which embeds the 2 dummy posters Run pdflatex to create a PDF from the LaTeX document in step 2 Step 1