Question: Low quality PDF graph output

What happened to the graph output?

Just to update a bit to be more specific as what I did.

I have been using Maple since 2007 and never had such problems before 2012, when I did my PhD and switched to Mathematica.

1 - Right clicked on the graph and export to PDF - low quality (not seem like vector graphics)

2 - Print using Adobe PDF Printer from the system - low quality (not seem like vector graphics)

3 - EPS is fine, but WHHHHYYYYY????? Is this a bug??

[code] with(plots): z := x + I*y: inequal([ evalc( abs(z+1-I)    ) <= 1, evalc( argument(z-1) ) <= 3*Pi/4 ], x = -2.0..1.5, y = 0..2.2 , scaling = constrained, transparency = 0, numpoints = 500 ) [/code]

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