26 lines
607 B
Markdown
26 lines
607 B
Markdown
# how to imagemagick
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quick dozens write this shit down before you forget
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resize an image
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: `convert -resize 800 in.png out.png`
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do a watermark
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: `composite -compose multiply -gravity center -geometry +0+0 watermark.png page.png out.png`
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convert pdf pages to individual png (accounting for weird transparency stuff)
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: `convert pages.pdf -quality 50 -background white -alpha remove -alpha off pages.png`
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gif shit
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: `convert -delay 2 -loop 0 *.jpg -layers Optimize out.gif`
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: `convert file.gif frames.png`
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dither and reduce colors
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: `convert image.png -quality 70 +dither -remap netscape: out.png`
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