Adobe Community: why doesnt jpeg show up as an option when i do a save-as?

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1. markerline,

Jul 23, 2012 11:02 AM in reply to sasabombasa

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Make sure that you are not trying to save a grayscale or an index-color file. Make sure it is in RGB mode.

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2. Noel Carboni,

Jul 23, 2012 11:28 AM in reply to sasabombasa

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FYI...

Markerline's advice is right on for versions of Photoshop before CS5. In Photoshop CS5 and newer, if you're working on a 16 bits/channel image it will actually offer the JPEG setting, saving you several steps.

-Noel

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3. markerline,

Jul 23, 2012 12:13 PM in reply to Noel Carboni

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Interesting Noel. I wasn't aware of that update to PS. Just out of curiosity and I may be entirely wrong,... isn't there a situation with web pages where anything besides an 8-bit image isn't supported. For instance 8-bit PNG vs 24-bit PNG? That may have changed with HTML5 anyway but I thought in my studies I remember having issues with 24-bit PNG and thus a 16-bit JPG might also cause concern. Am I on track about this issue?

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4. R_Kelly,

Jul 23, 2012 12:23 PM in reply to sasabombasa

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What version of photoshop and operating system?

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5. Noel Carboni,

Jul 23, 2012 12:30 PM in reply to markerline

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It just automatically switches to 8 bit and "as a copy" operation to save JPEGs from 16 bit documents. There's no problem with the saved files.

I don't know how many other formats this shortcut applies to. I know I (probably among others) requested it going WAYYY back, because without it what I was occasionally doing (by accident) was switching my document to 8 bits/channel, Save As JPEG, then forgetting to go back in the history to preserve the 16 bitness in the master document.

From what I have seen, all the modern browsers handle 24 bit PNG files nowadays, and have for some time.

-Noel

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6. Chris Cox,

Jul 23, 2012 3:02 PM in reply to markerline

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"24 bit PNG" is a mis-nomer (confusing bit depth with total number of bits)

It's 8 bit/channel RGB.

And yes, some web browsers don't support 16 bit/channel PNG (though most do now).

JPEG isn't an issue, because it is almost always 8 bits/channel. When you save a 16 bit/channel image in Photoshop, it gets converted to 8 bits/channel for PNG.

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7. sasabombasa,

Jul 23, 2012 4:39 PM in reply to R_Kelly

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cs3 os 10.6.8. file is rgb and u until yesterday i had about 20 options as to how to save-as. now i have only 7. see attached

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8. Noel Carboni,

Jul 23, 2012 4:59 PM in reply to sasabombasa

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Use Image - Mode - 8 bits/channel to reduce the bit depth.

-Noel

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9. sasabombasa,

Jul 23, 2012 5:57 PM in reply to Noel Carboni

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ok, this worked. i never adjust bits/channel so i dont know how this happened (much less wha it means). but now i know how to fix it.

than you!

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why doesnt jpeg show up as an option when i do a save-as?

Jul 23, 2012 10:56 AM

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