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    Amolith (amolith@nixnet.social)'s status on Wednesday, 04-Oct-2023 23:00:37 JSTAmolithAmolith

    Pro tip for optimising images before uploading them somewhere like fedi so the recipient(s) don’t have to download 12 MBs of unimportant detail

    magick input.jpg -resize 1000x resized.jpg du input.jpg resized.jpg # see the size difference jpegoptim -s --all-progressive -m70 resized.jpg du input.jpg resized.jpg # see the size difference

    Resizing the image does most of the heavy lifting. Very few people will blow it up fullscreen on a 4k display; 1000px wide is usually sufficient. The jpegoptim command strips metadata (such as location), turns it into a progressive JPG so it loads more pleasantly, then reduces the image detail by 30%

    For PNGs, replace .jpg with .png and the jpegoptim command with

    optipng -o6 -strip all resized.png

    It strips metadata and brute-forces common compression settings to find which one is more efficient.

    Friends don’t let friends waste bandwidth! :akko_thumbup:

    In conversationWednesday, 04-Oct-2023 23:00:37 JST from nixnet.socialpermalink
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GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.

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