HP Designjet Z2100 Printing Guide [HP Raster Driver] - Proof a press with CMYK [Adobe Photoshop CS2 - Mac OS X]

Click OK.
4. Open the image, File menu > Open…:
If the document has an embedded color profile that does not match the current working space,
select Use the embedded profile. Otherwise, select Assign working space; if the
displayed image does not look correct, try assigning it to other color spaces with Edit > Assign
Profile (try sRGB, Adobe RGB, Color Match RGB and others) until you are satisfied.
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