|| SU9AR wrote:what's PDF?
Portable Document Format (
PDF) is a file
format created by Adobe
Systems in 1993 for document exchange. Adobe PDF is used for
representing two-dimensional documents in a manner independent of the
application software, hardware, and operating system.
[2] Each Adobe PDF file encapsulates a complete description of a
fixed-layout 2D document that includes the text, fonts, images, and 2D vector graphics which compose the documents. Lately, 3D
drawings can be embedded to PDF documents with Acrobat 3D using U3D
or PRC and various other data formats.
It is use to compress the whole book into a zip folders like winrarlab/ziprar.
If you are interested to download it to http://www.tweakground.forumotion.com/tech-corner-f83/adobe-products-t284.htm