What is PDF?
PDF is document file format. It is most convenient file format for delivering (text) documents in read-only format.
It is possible to attach PDF document to the post. It may deliver better design or some other info not possible by the system.
Rules
Smaller files are better – less download time, quicker to open.
Meaningful filename. Example: 20121026_tallinn_seminar_jasmuheen.pdf
No spaces " ", uppercase "ABC" or umlauts "õäöü" in filename. Best: a-z and 0-9 and _ (underscore) and - (dash/minus).
How?
Click on input field or on [Browse].
It opens up file selection dialog window, choose your file.
Click [Upload].