Civi 4.5.6 on Drupal 7.3.5
Go to make a single contribution receipt and get the following error
Fatal error: Maximum execution time of 30 seconds exceeded in /srv/www/yyyyyy/public_html/sites/all/modules/civicrm/packages/dompdf/include/line_box.cls.php on line 78
any thoughts ?
It might depend of the template layout you use or token or... plenty of reasons that the pdf generation can become slow.
In general, if you want good performances for pdf generations, install wkhtmltopdf and configure civicrm to use it
The way pdf generation works is that civicrm generates an html page first, then convert it to pdf. wkhtmltopdf is a software that does it way faster than doing it in php native
