problème couleur pantone en mode LAB

Forum|Forum|4 years ago
October 7, 2021
2 replies
751 views

Bonjour la communauté,

depuis la dernière mise à jour il semblerait que j'ai un souci de rendu couleur sur indesign. j'importe un vectoriel d'illusatrator sur indesign, le pantone que ce dernier possède en mode cmjn sur illustrator bascule en mode LAB sur indesign, le mode est bloqué ainsi et du coup le rendu visuel sur écran en est changé, mais pas en impression. même en convertissant en pdf ce dernier conserve ce rendu modifié.

avez vous une solution?

Merci

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rob day

Community Expert

Here is a zip file with the legacy Pantone Solid .acb libraries, which were defined as CMYK. They will load as CMYK defined swatches in InDesign:

https://shared-assets.adobe.com/link/371c5cf4-60ca-4810-64ee-5da1cfeaee54

rob day

Community Expert

Is your color printing as a spot color (a separate plate on press) or is going to be converted to process color and print as CMYK?

Both InDesign and Illustrator define the Pantone Solid Ink libraries as Lab Spot colors. In Illustrator if you click the Color panel’s Lab icon the selected fill will get converted to process CMYK:

Also, in both applications turning on Separation Preview previews the spot color as solid ink (Lab), if you turn off Separation Preview you will get a preview of how the color would convert to CMYK and it will be brought into the CMYK gamut. PANTONE 806 is out-ofgamut to CMYK so its appearance shifts with the CMYK conversion preview: