I am Charmie

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Change the version of a PDF file

The following command can change the version of input.pdf to 1.4 and save as output.pdf by using Ghostscript. gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf