Still getting the error, on different files. Anyone have any idea?
I use CS6. I occasionally need a pdf of an exact pixel dimension and had no trouble downsampling to what I needed and then "Saving As" a pdf. Now, whenever I save as pdf, it gets downsampled way below what it was. I'm pretty sure it worked before Yosemite and not after. I reset Photoshop, which didn't help, so I'm here with you with a similar problem.