Can I? compress pdf's

I'm have taken on the refurb of an existing site which has
copies of its inhouse magazine up on its site in a pdf format.
Some of these are 16Mb in size and I was wondering if there
is a quicker route to opening these large files maybe by
compressing them.
I've done a google but much refers to making them smaller for
mobile products, even though I'm broadband I find uploading and
downloading very slow.
Any ideas?

> I've just had a quick butchers, what default setting
would you recommend?
> 'Smallest File Size'? or something else.
It really depends on the PDF itself.
Typically, people sending big PDFs have set it optimized for
print...300dpi
photos and the like.
For the web, just downsample everything to 72dpi or so and
that should be
good.
Another problem are PDFs using highly complex vector
illustrations. These
can really bog down a PDF, and those should really be
converted to raster
images prior to creating the PDF.
-Darrel

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