Putting a link to your website is especially essential if you think anyone would download the PDF and place it on their website... Are their any automated programs that will go through a list of PDF documents and add the title and description to them? We have a /pdf/ folder with hundreds of documents, and going through a few random ones noticed that they have all blank properties content.

IE: http://www.fondriest.com/pdf/nexsens_isic_spec.pdf

Our graphical artist who made the files left them as the indesign file name.