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Exporting to PNG as CMYK

Explorer ,
May 21, 2020 May 21, 2020

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I have been trying to save my images to print so I can sell them on my Etsy shop.

First I copy and paste from Illustrator into Photoshop onto the canvas (8x10 inches / 2400x3000 pixels at 300ppi) as a vector smart object. Then I flatten or merge all the layers then go to Layer > Export as > PNG.

After I saved it I open the document again. I check the ppi which is now at 72ppi and the inches have changed to 33 x 41 inches but the pixels remain the same!! wtf?

This is so confusing to me. Can someone tell me what I'm doing wrong?

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Community Expert ,
May 23, 2020 May 23, 2020

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Many professional Printer drivers have both CMYK and RGB portions of their drivers. Epson is one that comes to mind.  Rips take advantage of Postscript and convert that to CMYK or RGB but mainly rasterize the vector art.   

 
Even printers with both CMYK and RGB in their drivers are subject to how any software sends files.  For example, Acrobat by default will send as RGB to Epson and not use the CMYK side of The Epson Driver 
 
To test which one you have, make two patches in the same image. One 100% CMY the next 100% CMYK 
 
If they both print black you probably have an RGB driver
 
Bob
ICC programmer and developer, Photographer, artist and color management expert, Print standards and process expert.

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Community Expert ,
May 24, 2020 May 24, 2020

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Hi Bob,

Just to be clear, the OP is looking for advice on format for selling images online to the general public to print at home.

I don't think that sending CMYK files is relevant for him. 

 

I personally have never seen and Epson driver that will print, say 50%K with just black ink. 

 

thanks

neil barstow, colourmanagement.net :: adobe forum volunteer

 

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