MERGE PDFS Using Ghostscript Ghostscript has a feature to merge multiple pdf files into one. Although ImageMagick also has this feature, I prefer this one, as it doesn’t rasterize and scales down the pdf files. gs -dNOPAUSE -sDEVICE=pdfwrite \  -sOUTPUTFILE=output.pdf \  -dBATCH 1.pdf 2.pdf]8;;\