Can Blender easily render a single image from 3D source files? Very simple project:  I have a number of PNG image files, including textures, height map, normal map, and some masks.  I want to turn these into a single still image.

Before I invest time learning how to do this in Blender, I'd like to know whether Blender can even do this, and how easy it's likely to be.  I know a lot of the concepts of 3D rendering, but I've never used this kind of software before.

Is Blender likely to be a good choice for me?

Thanks in advance!
The types of images you mention are what you would use in blender to control the surface appearance of a 3D object, that you then position and render into a 2D image.

If you want to merge multiple images into one image, you would be better off using a 2D image editing program like GIMP or Krita. Another option could be using ImageMagick to combine them using the CLI.