Full Use Case:
Does RS Documents have functionality to set the width or height of an image being merged into a google doc?

Reply:
We do not currently have the functionality to set the width or height of an image being merged into a google doc. What we have is that if you are merging child records within a table, then if you are merging images from those child records, image will be resized to fit cell width. If you are interested in helping pay for this feature to be developed, please contact support.