Christoph Polcin

Change PDF Resolution

Get Ghost­script and replace <DPI>

gs -sDEVICE=pdfwrite \
-dCompatibilityLevel=1.4 \
-dPDFSETTINGS=/screen \
-dNOPAUSE -dQUIET -dBATCH \
-sOutputFile=out.pdf \
-r<DPI> \
in.pdf