Imposing a pdf/postscript on top of another one

[irco]

On Sun, Aug 20, 2017 at 06:53:47PM -0500, Antonio Olivares wrote:
> Thanks for your input.  I may have to copy the files and take them to
> another machine so I can try to use pdftk or maybe use a command from
> imagemagick which can do the job?

Polytropon gave you a hint:
On Sunday, August 20, 2017, Polytropon <freebsd at edvax.de wrote:
> See "man pdftk" for the "background" keyword.

You may need to render the background of the background image
transparent. This can be done using convert from imagemagick with
the transparent option. The GIMP can do this too.