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faceless
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Joined: 25 Apr 2006
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 Posted: Sun May 18, 2014 2:48 am Post subject: What is a PNG file and why use them? |
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http://www.libpng.org/pub/png/spec/1.2/png-1.2.pdf
That's what a PNG file is. The reason you should use them is because they are lossless. If you upload pics to facebook, youtube, twitter (or any other platform like it), they will usually make a jpg from your pic before it shows to others, which always lowers the quality. So, starting with the highest quality in the first place guarantees a better result for the viewer. |
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Bob
Joined: 01 May 2006
Location: US
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| Posted: Sun May 18, 2014 10:50 pm Post subject: |
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And they're massively smaller than raw or TIF.
Though Adobe had for the longest time a bug that wouldn't see the transparent layer properly. Anyone know if that got fixed in the latest version? |
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faceless
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Joined: 25 Apr 2006
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| Posted: Sun May 18, 2014 11:22 pm Post subject: |
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| I use Paintshop to make transparencies (it's quicker for me) and then import them into Paintshop and they're fine |
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luke
Joined: 11 Feb 2007
Location: by the sea
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| Posted: Mon May 19, 2014 2:44 am Post subject: |
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photoshop cs5 can save transparent png's fine, although i've never tried opening one with it. i save everything as psd and export what i need to use
png's are great for pictures with text on. i remember uploading a logo to facebook and the jpg compression made it terrible, but the png version was fine |
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Bob
Joined: 01 May 2006
Location: US
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| Posted: Fri Dec 19, 2014 5:59 pm Post subject: |
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| luke wrote: | photoshop cs5 can save transparent png's fine, although i've never tried opening one with it. i save everything as psd and export what i need to use
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Doesn't save opacity info properly, so it's still borked. There's ways around it, but not by default, so a little bit of a chore if you're creating opacity maps. |
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