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I have these .jpg pics and I removed their background. But after I saved them to .png their file sizes skyrocketed. Like a 198kb file becomes 3.82mb after I save it to .png. Why is that?

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    PNG: uses a lossless compression JPG: lossy compression – bummi Jan 8 at 15:06
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JPG uses much worse compression settings (worse for quality, better for size)

When you save a photo as a .jpg it's heavily compressed (and blurred out too) which is why you have a much smaller file size.


See this excellent answer by Vincent on this. Also have a look at the main question and other answers, great info!

There's also an awesome post on Stack Overflow about this.

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