>>8
Yep, you're just the kind of insipid twit I thought you were. Since you're apparently to busy with your CP to learn how to read, PDF specification v1.7 (which can be read in full by anyone with an internet connection here:
http://www.adobe.com/devnet/pdf/pdf_reference.html [don't forget, folks! It's not open! Hur hur hur!] is currently undergoing review and adaptation to ISO standard by the AIIV. This is following the wave of specialized PDF formats that have already seen this treatment (PDF/A, PDF/X, PDF/E, PDF/H, PDF/UA).
The distinction of "document" is made for a reason, simpleton. PDF allows me to transmit a contract to another party with the confidence that they won't be able to change it before they sign it- plaintext does not. It also allows me to be confident that the file I send to another professor will be readable exactly as I've typed no matter his or her platform of choice and what fonts and display libraries are installed (TeX? IPA? Fonts that I've created? The list goes on). Until you come up with arguments supporting your ignorance properly in the light of logic and common sense, you'll never be able to move forward.
PS: Try actually using KPDF (or anything poppler-based) before making comments. A long PDF will load much faster than the equivalent HTML, especially when images are involved.
tl;dr:
>>8 has failed miserably. Saged for thread courtesy