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Compressing PNGs

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jeph:
If you're using PNG-8 there is NO WAY your files should be bigger than jpegs. PNG-24 is fancier but very large (and honestly not THAT useful).

Typically QC strips are published as either 128 or 256-color PNG-8s.

Also: Wide, horizontal images compress markedly better than tall, vertical ones. Sucks for me I guess!

Lunchbox:
When I use Photoshop CS  and try to compress with PNG, the pictures turn out really dark. Like my characters are trying to converse and drink beer in the middle of a blackout.
What is doing this?

McTaggart:
I work with photos, so compression pretty much doesn't happen for me. I keep at least three copies of most of my pictures. One RAW, one 8-bit TIFF, and one dodgy .jpg. If I'm backing stuff up sometimes I only keep the raw, because raws are nice and small, 9 or so mb as opposed to the 16 to 20 mb tiffs they become when I process them. For posting on the internet I use jpeg. A jpeg at quality 10 or so doesn't look bad at all and is on hell of a lot smaller the a png of the same image. For photographs that is anyway.

jeph:

--- Quote from: Lunchbox ---When I use Photoshop CS  and try to compress with PNG, the pictures turn out really dark. Like my characters are trying to converse and drink beer in the middle of a blackout.
What is doing this?
--- End quote ---


That's a weird issue, I've certainly never run into that. I WOULD recommend using ImageReady or Illustrator's Save for Web feature to do your compressing though, as Photoshop's seems a lot more prone to crashing or taking ass-long to render.

Lunchbox:
Thanks, I'll have to dig up my copy of ImageReady and give it a whirl.

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