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tif vs png

Engaged ,
Apr 08, 2021 Apr 08, 2021

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I was having a problem today with a photo changing colors between PS and AI. I have their color management settings synced. Thru trial and error, I found that saving it as a tif instead of a png solved the problem. A bit of Googling suggested that profiles are not supported in pngs in Adobe applications. Is this true? If so - why?

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LEGEND ,
Apr 09, 2021 Apr 09, 2021

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I have seen it said that Photoshop "Export" and "Save for Web" don't save profiles in PNG, while "Save as" does. Sometimes people use Save for Web or Export when not intending (only) web use, and this causes problems. The function name "Export" is especially unhelpful, because it gives no clue of its limitations.

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Engaged ,
Apr 09, 2021 Apr 09, 2021

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Ah. That is exactly what I have been doing - using Export.

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Community Expert ,
Apr 10, 2021 Apr 10, 2021

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To be precise: Export and Save For Web do correctly embed profiles in PNG. The problem is that they don't do it by default. You have to check the box.

 

PNGs have a different problem with "Save As". There you can't embed the profile at all, no matter what you do - if that profile happens to be sRGB. Which of course it always is with PNGs. Any other profile can be embedded with no problem. Go figure.

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Community Expert ,
Apr 10, 2021 Apr 10, 2021

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Yes that’s pretty messed up, someone should post a bug report please

here:

https://feedback.photoshop.com/photoshop_family/categories/photoshop_family_photoshop

 

I hope this helps
neil barstow, colourmanagement net :: adobe forum volunteer
google me "neil barstow colourmanagement" for lots of free articles on colour management
[please only use the blue reply button at the top of the page, this maintains the original thread title and chronological order of posts]

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LEGEND ,
Apr 09, 2021 Apr 09, 2021

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By the way, if going from PS to AI, while it might seem obvious to save a PNG or TIFF or JPEG, consider just placing the PSD.

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Engaged ,
Apr 09, 2021 Apr 09, 2021

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I export the image so that I can crop it to the size I want it in Illustrator and also because I assume it keeps the Illustrator file smaller. Is that daft?

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LEGEND ,
Apr 12, 2021 Apr 12, 2021

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No, those are good reasons. But it might, for now, solve your colour issues. Or it might not. It could be interesting to find out, it might inform the original problem.

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Community Expert ,
Apr 21, 2021 Apr 21, 2021

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In Illustrator PNGs and profiles are a mess.

It does not read nor write profiles when importing or exporting (save for web is the exception and can convert to sRGB).

If your Illustrator document has Adobe RGB as the document profile and you export as PNG, the rgb numbers will be exported, but the profile is not saved.

If you open the resulting PNG in Photoshop, Photoshop wrongly assumes sRGB, you need to assign the Adobe RGB profile to get the correct colors.

If you place a PNG in Illustrator it assumes that it has the current document color profile and ignores an embedded profile.

Unless you only work with sRGB files, PNG is the wrong file format to use in Illustrator.

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