# JPG Compression
**URL:** https://forum.kirupa.com/t/jpg-compression/113408
**Category:** Uncategorized
**Created:** [June 17, 2004, 4:51pm UTC](https://forum.kirupa.com/t/jpg-compression/113408 "2004-06-17T16:51:37Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@cki](https://forum.kirupa.com/u/cki)
#### Post date: [June 17, 2004, 4:51pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/1 "2004-06-17T16:51:37Z")
Hi,
I just read this article,([http://www.informit.com/articles/article.asp?p=102165&seqNum=2](http://www.informit.com/articles/article.asp?p=102165&seqNum=2)), and I’m unsure about the following passage:
NOTE
PNG files are by far the best for importing into Flash because Flash runs .JPG compression when you publish a movie. You don’t want to compress an image twice, so don’t import .JPG images. Seriously. Just don’t do it.
My skepticism with this advie is Macromedia appears savvy enough to anticipate this redundancy and compensate for it, please enlighten?
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 4:56pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/2 "2004-06-17T16:56:12Z")
well, it _used_ to be true.
not so much anymore, since Flash MX recognizes the compression, and allows the designer to either use the same compression, or a different one of thier choice.
Hope that clears up the confusion.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 5:07pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/3 "2004-06-17T17:07:43Z")
yeah, just check the properties of an imported image in the library and you can see what rev is talking about 🙂
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 5:10pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/4 "2004-06-17T17:10:01Z")
PNG’s rock because they have true blended transparency. Gif’s suck in that category. I usually import all png’s unless I HAVE to do something else.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 5:19pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/5 "2004-06-17T17:19:11Z")
that extra channel increases file size, though.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 5:25pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/6 "2004-06-17T17:25:41Z")
I mean for transparency images though. For the most part, I externally load jpgs. But for when you really need transparent and sharp imported images, pngs are the way to go.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 17, 2004, 5:42pm UTC](https://forum.kirupa.com/t/jpg-compression/113408/7 "2004-06-17T17:42:55Z")
What you can do when importing JPG filesinto Flash is to make sure you optimize them before you import them into flash and on the Flash library make sure “use imported jpeg data” is checked, that way Flash won’t compress the files twice like cki says.