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pdftoppm で PDF を PNG にするメモ

Last updated at Posted at 2022-04-01

背景

PDF を画像にしたい

Linux だととりあえず pdftoppm がありました.

PNG にする

-png を指定します.

指定した解像度にしたい

pdftoppm -scale-to 1024 input.pdf -png output.png

-scale-to で指定する.
ただ, 丸め誤差とかできっちり指定した解像度にならないときがあります.
-x などのクロップで対応しましょう.

DPI で指定

-r で指定できます.

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