Plot exported in EMF format does not scale well in MS Word

I have been using Mathematica for a short time now and never had a reason to learn about exporting vector graphics. However, I need to include some graphics in some work I'm doing in Word 2010. I save the plots as WMF and EMF and then import to word and then I save the Word document as a PDF. The problem is while 2D plots are scalable during zooming, 3D plots look awful. I have no idea why except that its 3D. I also have very little knowledge in vector graphics. Also I noticed that the file size with just one 3D plot is over 1MB. I have several PDF files with over 100 pages containing lots of 3D plots, non of which exceed 2MB. Please tell me how can I include 3D graphs in my document that are scalable when saved as PDF, just the way most professional looking publications look.

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Take a look here. Also, "most professional looking publications" are produced using $\LaTeX$. And last, but not least - if the link I posted above does not answer your question - add any relevant details to the question and/or code. –  Sektor Jun 4 at 23:27
Try using PNG for 3D graphics. I find that using bitmap formats is better for all but the simplest 3D graphics. Regarding the professional look: Word pretty much kills that ... but thats irrelevant for the question really. –  Szabolcs Jun 4 at 23:45
Thanks for your responses. How do make the image on the left look like the one on the right: s16.postimg.org/hdny3g0ut/mathematica.jpg –  medwatt Jun 5 at 0:11
As an alternative, consider rasterizing the 3D plot while keeping axes and labels in vector form: "Mathematica: Rasters in 3D graphics." This will reduce the size of the image while allowing arbitrary high quality. –  Alexey Popkov Jun 5 at 6:52
Also the EMF and WMF formats are not well-suited for high-quality vector graphics because for the purpose of their generation the original vector images are sampled at screen-resolution fidelity. You should use EPS instead if you need higher quality. –  Alexey Popkov Jun 5 at 7:00