Just shooting in the dark on this but does this have relevance? This is about Placing a PDF in Photoshop.
Note that when you place a file, you cannot edit the text or vector artwork in it. Why? Because Photoshop rasterizes the file, using the resolution of the file into which you placed it. Note too that when art is larger than the Photoshop image, Photoshop downsizes the art so that it fits the image.