The project "pdfTag"
The need to handle a lot of modifiable pdf-documents with PHP and the PDFlib was the reason for creating pdfTag.
During regular accomodations of pdf-documents for an electronic payroll system the problem of time consuming changes came up. To solve this problem, the original php-files which create the documents had a size about 30kb with more than 1000 lines of PHP-code, I wrote the class pdfTag.
In order to combine pdfTag with template engines the decision for an XML-based format, similar to html, was made.