Perhaps you should start by telling us why you need something as archaic as EPS.
… Is there something I'm missing to try to reduce the file size of the EPS? …
Avoid EPS at all. Use PDF instead.
Previously when I have tried using PDFs I was loosing resolution resulting in extremely poor display. EPS was the only thing that would hold up when imported as a background in a power point presentation. I just experimented with a PDF background and it appears to hold up - and I have reduced the file size. Thanks for your slightly condescending, but accurate help!
It turns out that after saving powerpoint renders the pdf and it looses it's resolution. I've been though the gammut of .png .pdf .jpeg and all show the same issue. EPS is the only thing that's holding it's resolution. So I'm back to my same question, is there a way to condense the file size of an EPS? Thanks again.
What version of PowerPoint on what OS? Windows or Mac?
I cannot see degration in resolution using PNG files with PowerPoint on Windows. I'm doing this quite often for PowerPoint files used for presentations on HD-TV live shows. However I'm using PhotoShop to render high resolution PSD files out of exported PDFs and then save to PNG using PhotoShop's "Save To Web" feature.
What exactly is high resolution in your case regarding PNGs in width times height, pixels times pixels?
I'm on PowerPoint:mac 2011 v14.4.3, Mac OS X v10.9.4 and CC 2014 for all my Adobe Products. I tried exporting the PNG directly from InDesign and that didn't work. I'll try via Photoshop and see if that produces better luck.
As far as resolution goes I'm seeing even stranger results: One of the backgrounds has three photos, 864x517 that I've reduced to having an Effective PPI of 72, this slide holds up fine as a PDF. However, the strange part is, the one that falls apart is the one with a solid background, a logo and 2 lines of text - no hi res images, just copy.