Pantone/PMS Color Profile option available in Photoshop?

Question

I've never worked with Pantone colors previously, so forgive me if I am missing something, or being stupid (or if my client is), etc. I have received logos in RGB, as jpeg files (I also have the EPS versions). My client insists that these images are not to be in RGB, and that the colors follow their Pantone specifications. These logos are with the intent of printing.
I have received the RGB and CMYK equivalents that the previous Marketing company had provided, so achieving the desired color is not a problem. When I pick up the color, and select the color libraries, I see that corresponding Pantone color is correct. So, once I change the colors and save the files, they're obviously still RGB unless I change it to CMYK. Is [Image-->Mode-->CMYK] correct when dealing with Pantone printing? Is there no image mode for PMS? I am not doing the printing so I don't need specification beyond the point of saving the file.
Thanks

Answer 1

Pantone Colors are Spot Colors, one can create Spot Channels in Photoshop.
Claiming an RGB image without Spot Channels conforms to Pantone Colors seems potentially problematic.
The result of converting an RGB image to CMYK for printing depends on the RGB color space (hopefully the profile has been embedded)), the CMYK target space and the separation settings like the Render Intent.
Assuming some particular RGB values will always result in the intended appearance (as defined by some Pantone Color) in CMYK is basically unjustified when one considers how many Pantone Colors’ appearance is out of gamut for many and in some cases even for all CMYK spaces.
(While it’s possible that your customer has made sure all the Pantone Colors they use in their logo are in gamut for the used RGB space and most CMYK spaces I would not like to rely on that.)
Are the eps versions of the logos vector data or pixel eps?
If they are vector they may well contain the correct Pantone Colors, do you have Illustrator, Indesign or Acrobat?