All SetaPDF 2 components will require PHP 5.6 as the minimum PHP version. The latest versions are tested on up to PHP 8.2.
An up to date PHP version (> 8.x) is recommend for best performance and memory results.
Following PHP extensions must be enabled in the PHP configuration:
Because PDF parsing and writing is a performance intensive task the components should be used on a machine with a fast CPU. Also the max_execution_time value should be taken into account.
Same for memory usage. Because PDF documents are sometimes build with several thousands of individual objects, the components will need memory for managing these things. Maybe it is needed to touch the memory_limit value as well.