Good day, dear colleagues.
We are sign making company which used UV roll to roll and flatbed printers different brands. And I need to prepare files for printing. Most of our UV printers use Sai Flexi and ONYX software. And now we use Adobe Photoshop for preparing the files for printing in case raster images and Adobe Illustrator for vector files. Also use Corel Draw but in case of Adobe usage it is more easy to explain what we need. We want to change all our design software to Affinity products but still can't find very important ability:
1/ We need to make a separate spot color channel for raster images. Like we made it in Photoshop by the manual: https://helpx.adobe.com/photoshop/using/printing-spot-colors.html In case vector images we find a way to make global spot color what we need but we need to make same thing with raster image. Please find a file, which we are preparing in CorelDraw and which correctly works with our RIP software (ONYX) and our printer, by the link: https://1drv.ms/b/s!Aoz0qb9Mh59rh4NO-qoRp-Uax2LmJA?e=QvRnRb.
Please give me a way to make same thing in Affinity Photo or inform about plans to add this ability in the future or about impossible to get this option.