php-pdftk brings the full power of pdftk to PHP - and more. Note: The pdftk version from the alternative PPA ppa:malteworld/ppa is no longer available. The author ...

This proposal is complete and already merged into ECMA262 specification. See the specification text here. Thanks for help and feedback on this effort from Brendan Eich, Waldemar Horwat, Jaro Sevcik, ...