How to Convert RGB to CMYK in Photoshop

Fantastic!

Does this work the same if i have a png file and wanting to make it cmyk?

Thank you

How do you export from there? When I do - it turns it back to RGB

This just changes the working mode, but a proper conversion from one color space into another is not achieved by this tactic.

What about iPad PS version?

Straight and to the point! THANK YOU

YOURE THE BEST