Feature Request: Support for Grayscale ICC profiles
Please add support for Grayscale profiles like in Photoshop. In InDesign, I can only define RGB and CMYK working space. In Photoshop, I can also define color space for grayscale files and files with spot colors.
Many books, magazines or newspapers are still printed using black ink only. Minimal support for grayscale workflow makes creating monochrome documents for different papers complicated as InDesign cannot convert grayscale profiles (ie. from Dot Gain 15% to Dot Gain 25%).
Filip Blazek commented
One example: A document is about to be printed on an uncoated paper in Europe. All images in the document are in RGB (AdobeRGB) and Grayscale (Dot Gain 15%).
When I select Euroscale Uncoated v2 output profile, the exported PDF for print wrong. While images in RGB are correctly converted into CMYK based on ICC profile, grayscale images are not affected. The result is, grayscale images will be too dark. The only option is to manually convert grayscale image into proper grayscale ICC profile.
The solution is easy: let users select the grayscale profile used to convert grayscale images during the export of PDF for printing.