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> Do not use 24-bit PNGs!
sk89q
Posted: 2005-09-18, 09:16 PM


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For most of the images that will be made in this forum, saving the image as a 24-bit PNG will result in huge filesizes that will no doubt be in clear violation of KAF rules.

If you're going to save your image as a paletted image, an 8-bit PNG is recommended. An 8-bit PNG allows up to 256 colors which should be good enough hopefully.

If you use Adobe Photoshop, here are instructions to save as a 8-bit PNG:
  1. File -> Save for Web...
  2. Select PNG-8 128 Dithered
  3. Change Colors to 256 if your image does not work well enough under only 128 colors
  4. Adjust dither if needed
  5. Save
GIF is not recommended except for animation. GIF's compression algorithm is not as good as PNG's.

Note: Photoshop and several other programs do not store gamma information with very high compatibility and as a result, Internet Explorer may display the image's color incorrectly. The only software I know to correctly save the gamma info is Macromedia Fireworks.


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Aurora_sword
Posted: 2005-09-19, 06:55 AM


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hmmsmiley.png

okay, but PNG-24 supports better transparency.
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sk89q
Posted: 2005-09-19, 08:57 PM


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Not in IE. All transparent or translucent parts will appear a grey.


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Soraiya
Posted: 2005-09-19, 09:06 PM


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Whoa..weird..so different browsers show images in different ways as well..


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sk89q
Posted: 2005-09-19, 10:01 PM


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No, it's just Internet Explorer because it's messed up.

This is fixed in IE7 though.


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Aurora_sword
Posted: 2005-09-22, 10:39 PM


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QUOTE (sk89q @ Sep 20 2005, 02:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


more like..very light cyan hmmsmiley.png
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sk89q
Posted: 2005-09-23, 11:13 PM


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QUOTE (Aurora_sword @ Sep 22 2005, 10:39 PM)
QUOTE (sk89q @ Sep 20 2005, 02:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


more like..very light cyan hmmsmiley.png


It depends on your system actually :3


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Heroine of Time
Posted: 2005-09-24, 05:23 AM


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QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;

Anyway, i always go to Save>Save As>PNG

Isn't that ok?
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Aurora_sword
Posted: 2005-09-24, 09:17 PM


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QUOTE (Heroine of Time @ Sep 24 2005, 11:23 PM)
QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;

Anyway, i always go to Save>Save As>PNG

Isn't that ok?


maybe that's PNG-32!
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sk89q
Posted: 2005-09-25, 08:27 AM


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QUOTE (Heroine of Time @ Sep 24 2005, 05:23 AM)
QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;


It IS true. IE <= 7 does NOT have the ability to display 24-BIT transparent PNGs. It is possible with hacks, but it is not an automatic inherent ability of IE.

Note that I did not mention all transpencies.

I didn't mention Firefox. Firefox and all other major browsers support PNG.

QUOTE (Heroine of Time @ Sep 24 2005, 05:23 AM)
Anyway, i always go to Save>Save As>PNG

Isn't that ok?


No. Photoshop does not even ask you what format of PNG you want to save it when you use File -> Save As.

QUOTE (Aurora_sword @ Sep 24 2005, 09:17 PM)
QUOTE (Heroine of Time @ Sep 24 2005, 11:23 PM)
QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;

Anyway, i always go to Save>Save As>PNG

Isn't that ok?


maybe that's PNG-32!


There is no PNG-32.


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Heroine of Time
Posted: 2005-09-25, 08:30 AM


I think we have an emergency.

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ok then...i just checked and it saves my PNG's as a PNG-8...apperently...

but what if some of us want to do transparencies? (not me, i hate that stuff)
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sk89q
Posted: 2005-09-25, 08:32 AM


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QUOTE (Heroine of Time @ Sep 25 2005, 08:30 AM)
ok then...i just checked and it saves my PNG's as a PNG-8...apperently...

but what if some of us want to do transparencies? (not me, i hate that stuff)


Save as an 8-bit PNG.

---

Also: random note: the way Photoshop saves gamma for PNGs, colors of PNGs in images will look different in Internet Explorer. The only editor that I know of and have tested that saves PNGs so that they appear the same in IE is Fireworks.


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Aurora_sword
Posted: 2005-09-25, 08:37 AM


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Note: 'Aurora_sword' was banned from the community for failing to adhere to the community standards. Reasoning: violating the rules.
QUOTE (sk89q @ Sep 26 2005, 02:27 AM)
QUOTE (Heroine of Time @ Sep 24 2005, 05:23 AM)
QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;


It IS true. IE <= 7 does NOT have the ability to display 24-BIT transparent PNGs. It is possible with hacks, but it is not an automatic inherent ability of IE.

Note that I did not mention all transpencies.

I didn't mention Firefox. Firefox and all other major browsers support PNG.

QUOTE (Heroine of Time @ Sep 24 2005, 05:23 AM)
Anyway, i always go to Save>Save As>PNG

Isn't that ok?


No. Photoshop does not even ask you what format of PNG you want to save it when you use File -> Save As.

QUOTE (Aurora_sword @ Sep 24 2005, 09:17 PM)
QUOTE (Heroine of Time @ Sep 24 2005, 11:23 PM)
QUOTE (sk89q @ Sep 19 2005, 08:57 PM)
Not in IE. All transparent or translucent parts will appear a grey.


That's not necessarily true, i use IE and Fire Fox, and transparencies are still lookin...well...transparent...for me at least...but if yu're talking about the blue thing that stands as a background on transparent siggies, then yeah i see that on IE...but only like 10% of the time...

PFFT! Grey...>>;

Anyway, i always go to Save>Save As>PNG

Isn't that ok?


maybe that's PNG-32!


There is no PNG-32.


Yes there is! Macromedia FIreworks saves its files in PNG-32 format, I think.
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Heroine of Time
Posted: 2005-09-25, 10:08 AM


I think we have an emergency.

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there is actually a PNG-32 format...O.o
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Aurora_sword
Posted: 2005-09-29, 08:47 PM


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Note: 'Aurora_sword' was banned from the community for failing to adhere to the community standards. Reasoning: violating the rules.
There is indeed, undeniably.
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Heroine of Time
Posted: 2005-09-30, 07:25 PM


I think we have an emergency.

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Undeniably so...O.o
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Aurora_sword
Posted: 2005-10-02, 03:00 AM


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Note: 'Aurora_sword' was banned from the community for failing to adhere to the community standards. Reasoning: violating the rules.
What about TIFF images?
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