When you are unable to send quotations with PDF and are using PHP 5.4.* Please read on.
One of the PHP Errors occuring is: PHP Fatal error: Declaration of Zend_Pdf_FileParserDataSource_File::__construct() must be compatible with Zend_Pdf_FileParserDataSource::__construct()
The Zend Framework has a problem parsing a font with a path in combination with PHP Version 5.4.* (Please see
http://framework.zend.com/issues/browse/ZF-12093)
Please note that this is a general Zend Framework Bug and not a Cart2Quote Bug.
To fix:
Read this article on the MAgento Forum:
http://www.magentocommerce.com/boards/viewthread/279601/
(answer #7 gives the solution)
Alternative:
Update lib/Zend/Pdf/FileParserDataSource.php with the attached file
The construct function and destruct function are commented out in the attached file.