A simple Ghostscript command to merge two PDFs in a single file is shown below:
gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combine.pdf -dBATCH 1.pdf 2.pdf
Install Ghostscript:
Type the command sudo apt-get install ghostscript
to download and install the ghostscript package and all of the packages it depends on.
Thank you! I wasted a lot of hours fighting with libraries for NodeJS to just merge PDFs and you save me! 😍 Sometimes (almost always?) simpliest solutions are the best!