gs

GhostScript is a PDF and PostScript interpreter. More information: https://manned.org/gs.

• To view a file:

gs -dQUIET -dBATCH file.pdf

• Reduce PDF file size to 150 dpi images for reading on a e-book device:

gs -dNOPAUSE -dQUIET -dBATCH -sDEVICE=pdfwrite -dPDFSETTINGS=/ebook -sOutputFile=output.pdf input.pdf

• Convert PDF file (pages 1 through 3) to an image with 150 dpi resolution:

gs -dQUIET -dBATCH -dNOPAUSE -sDEVICE=jpeg -r150 -dFirstPage=1 -dLastPage=3 -sOutputFile=output_%d.jpg input.pdf

• Extract pages from a PDF file:

gs -dQUIET -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=output.pdf input.pdf

• Merge PDF files:

gs -dQUIET -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=output.pdf input1.pdf input2.pdf

• Convert from PostScript file to PDF file:

gs -dQUIET -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sOutputFile=output.pdf input.ps