Gluing (Imposition) PDF documents

Question

I have several A4 PDF documents which I would like (two into one) \"glue\" together into A3 format PDF document. So I will get from 2PDFs A4 a single one si

Answer 1

Found the following (free and open-source) tool for doing Imposition called Impose (thanks danio for the tip). This solved my problem perfectly.

EDIT: Here is how it's done:

Use PDF Toolkit to joint two PDF files into one (two A4)

pdftk File1.pdf File2.pdf cat output OutputFile.pdf

Create from this a single page (one A3):

java -cp Multivalent.jar tool.pdf.Impose -dim 2x1 -verbose -paper-size "42.2x29.9cm" -layout "1,2" OutputFile.pdf