My colleague and I are revising a paper which contains some 3dplots generated I think originally in Maple 2015 on macos as eps converted to pdf.  Originally they were around the 100 KB size.  When I generate them again in Maple 2017 they are more like 10 MB.  He is still running Maple 2015 and get the same 100 KB size.  Any idea what is going on here ?  

Thanks Michael

EDIT:  An example is 

with(plots);
plotsetup(postscript, plotoutput = `test.eps`, plotoptions = `color,portrait,height=350,width=350`);
plot3d(x^2+y^2+1, x = -1 .. 1, y = -1 .. 1, axes = boxed, grid = [200, 200]);

I get 7.6 MB my colleague with Maple 2015 gets 56 KB.  I tried it wtih Maple 2017 on a server I have access to also 7.6 MB.