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shadyueh/change pdf to grayscale

Created September 12, 2022 16:41
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change pdf to grayscale
gs -sOutputFile=outfile.pdf -sDEVICE=pdfwrite \
-sColorConversionStrategy=Gray -dProcessColorModel=/DeviceGray \
-dCompatibilityLevel=1.4 infile.pdf < /dev/null
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