Whatever e-mail server you use, there are usually limitations on the size of the attachment allowed. Even if there aren't limitations, it's important that attachments are an efficient form of transmitting information like projects, presentations and even resumes. If an attachment is so big it doesn't load, it is useless. PDFs, short for Portable Document Format, imply just that---the ease of sending and receiving this document. PDF formats don't change regardless of whose computer you are using and what e-mail server you subscribe to, unlike other programs like Microsoft Word, which doesn't create static documents. Most ways to send PDFs or other large files include using an outside application.
Download Pando at pando.com. Pando works like a BitTorrent, transferring the information directly between two peers through a peer-to peer file sharing protocol. There is no middleman. It allows up to 1GB of material to be sent with the free account. You can use your extant e-mail account with pando and control the downloading speed for your own received attachments. Drag and drop folders and files easily, labelling and providing context and description for your message. When you're done, you just enter your e-mail address and your e-mail is sent.
Download Send File at www.send-file.com. This program allows you to take advantage of an online storehouse for information, for up to 1GB, absolutely free. Stored files can be accessed only with a password and are secure. The email is sent from your regular e-mail address to any address you enter, with specific instructions to the receiver on how to access and download your file.
Use Send 6 at send6.com if you don't want to bother with downloading an application. It allows a size of up to 100MB and also sends from your e-mail address to whatever address you choose. Just type in both e-mails, select your files from your computer, and click send. You can also track the progress of the upload. The recipient is notified of these files and is given directions on how to download them.
Visit TransferBigFiles.com to store your files securely and for free in its database. Upload up to 1GB per file (up to 20 files of this size are allowed on the server at any one time), enter an e-mail address, and the other person will be notified that there is a download available for him. Files are stored for up to five days or when the 20-file limit is reached.