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Iydon Liang iydon

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@EyalAr
EyalAr / client.py
Created December 11, 2013 18:17
Demo code for my post about python's blocking stream reading functions.
from subprocess import Popen, PIPE
from time import sleep
# run the shell as a subprocess:
p = Popen(['python', 'shell.py'],
stdin = PIPE, stdout = PIPE, stderr = PIPE, shell = False)
# issue command:
p.stdin.write('command\n')
# let the shell output the result:
sleep(0.1)
@drawveloper
drawveloper / compress-pdf-with-gs.md
Created August 30, 2013 14:39
Compress PDF files with ghostscript

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality.

ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

Other options for PDFSETTINGS:

  • /screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
  • /ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
  • /printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
  • /prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.