Portable Document Format (PDF) from Adobe is the de facto standard for
cross-platform rich documents. Now, PHP applications can create or read PDF
documents on the fly, without the need to call utilities from the shell, depend
on PHP extensions, or pay licensing fees. Zend_Pdf can even modify existing PDF
documents.
* supports Adobe PDF file format
* parses PDF structure and provides access to elements
* creates or modifies PDF documents
* utilizes memory efficiently
