So, you created a bunch of PDFs and they’re too large to be sent by email? You tried compressing them and still have a huge file?
No problem. Smallpdf is a web application that will take those PDFs, process them immediately and return a much lighter version of the same files without any apparent quality loss (still good enough for print).
The service is free, but as they saved me a whole morning of tinkering, I went and bought them a coffee through PayPal.