how do I add the following google tag to all my wordpress pages:

Imprint

Ferroperm Optics A/S
Stubbeled 7, 2950 Vedbæk, Denmark
+45 45 89 03 92
info@ferropermoptics.com
www.ferropermoptics.com
CVR 21 32 51 47
Paul Erik Bisgaard
DK21325147

Image sources

https://www.flickr.com/photos/brokentaco
https://www.flickr.com/photos/zeissmicro/
https://www.flickr.com/photos/jsoe/