Differences between revisions 2 and 3
⇤ ← Revision 2 as of 2014-08-09 03:36:31 →
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Editor: SamatJain
Comment: Better contrast enchancement
← Revision 3 as of 2014-11-24 20:52:41 → ⇥
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Editor: SamatJain
Comment:
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== Convert PDF to PNG ==

{{{#!highlight sh
# 150 dpi (default)
pdftoppm -png file.pdf prefix
# 300 dpi
pdftoppm -rx 300 -ry 300 -png file.pdf prefix
}}}

Convert PNGs to PDF (optimize for size)

   1 NAME=whatever-name
   2 # Might want to consider using -normalize, -auto-level, -auto-gamma, -contrast-stretch '10%', etc. Enhances for greyscale documents
   3 convert $NAME*png -level '15%,75%' -auto-level tmp.pdf
   4 pdf2ps tmp.{pdf,ps}
   5 ps2pdf tmp.ps $NAME.pdf

Useful information:

Convert PDF to PNG

   1 # 150 dpi (default)
   2 pdftoppm -png file.pdf prefix
   3 # 300 dpi
   4 pdftoppm -rx 300 -ry 300 -png file.pdf prefix

CategoryCheatSheet

SamatsWiki: CheatSheet/PDF (last edited 2014-11-24 20:52:41 by SamatJain)