PDFs

Join Pdfs Vertically

pdfjam Page1.pdf Page2.pdf --nup 2x1 --landscape --outfile Page1+2.pdf

Then remove the margins (CAREFUL, MIGHT FAIL IF IMAGE HAS A LOT OF WHITE): pdf-crop-margins -v -p 0 -a -6 input.pdf

(Having installed this tool using pip install pdfCropMargins --upgrade)