So, you have a .pdf file that needs to be shared with people at a different location. Sometimes, those graphically-intensive file can be substantially large files. Sure, we could put the file on a server, share as a Google Docs upload, or upload to a wiki so others can download it. Emailing, however, just isn’t a good alternative for large pdf files or any large file for that matter.
One possibly helpful tool is a web-based pdf file compressor. Neevia.com has a very easy to use website that lets anyone upload a file and receive it right back with the file size reduced. http://convert.neevia.com/pdfcompress/
Trying this out several times with 5M pdf files gave different results. One particular 1-page document was reduced 92% shaving almost 4M off the file size. Another attempt only shaved 14% off of a 32 page pdf at the maximum compression setting.
The nice thing about this site is that it lets you try different compression settings before actually downloading the file.
There are various other downloadable apps that one can install and use to compress pdf file sizes. (http://www.makeuseof.com/tag/4-ways-reduce-size-pdf-file/) Using a web-based alternative works well regardless of the computer platform or browser you are using. Just try to use a fast network if your original pdf is a very large file.