how to compress the autocad files to the maximum ?

Question

my internet speed is 120kbps i am finding difficulty in sending the autocad files through outlook express,even after zipping with winzip the files with sizes 4mb is not sending over outllook express.

whats better way zipping or encryption.

any freeware to convert the autocad files to pdf.
i appreciate your suggestions.

Answer 1

You can only compress a file so much. You can use www.7zip.org for free and it will allow you to specify to what degree you wish to compress -- the smaller you make the file the longer it takes to make it. I think what you really need is a service that will allow you to transfer the larger files (instead of email)
www.yousendit.com www.rapidshare.com etc