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Lemmy.world Support

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Copy-pasting images to Lemmy in Firefox converts jpeg to png. Is this a Lemmy bug? (lemmy.world)

submitted 5 days ago* (last edited 5 days ago) by Tehdastehdas@lemmy.world to c/support@lemmy.world

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I just made a post copy-pasting images from another tab. All jpegs became pngs, for example 1.3MB became 6.4MB.

If I save the image first, then upload to Lemmy, it stays as a jpeg. What causes the pointless converting when copy-pasting? Can it be stopped from happening?

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[–] Tehdastehdas@lemmy.world 2 points 5 days ago* (last edited 5 days ago)

Only in simple images like graphs. Jpeg is smaller for photographs and paintings.

https://www.slashcoding.com/difference-between-jpeg-png/

The example I stated grew five times in size. The converter can see it was smaller before the conversion. Why not save the smaller jpeg?