Newer
Older
<a href=../project_management/ender3v3.png>PNG</a> (uncompressed, e.g. 89 MB) vs <a href=../project_management/ender3v3.jpg>JPG</a> (compressed, e.g. 184 kB)
<a href=https://www.gimp.org>GIMP</a>
<a href=https://www.gimp.org/tutorials/GIMP_Quickies/#changing-the-size-filesize-of-a-jpeg>compress</a>
<a href=https://www.gimp.org/tutorials/GIMP_Quickies/#changing-the-size-dimensions-of-an-image-scale>resize</a>
<a href=https://alessandrofrancesconi.it/projects/bimp>batch</a>
<a href=https://imagemagick.org>ImageMagick</a>
list formats:
convert -list format
convert PNG to JPG:
convert input.png output.jpg
convert all PNGs to JPGs:
mogrify -format jpg *.png
convert SVG to PNG at 1000 DPI:
convert -density 1000 -units PixelsPerInch input.svg output.png
compress JPG to quality 50% width 1000:
convert input.jpg -quality 50% -resize 1000 output.jpg
compress all JPGs to quality 50% width 1000:
mogrify -quality 50% -resize 1000 *.jpg