[NTG-context] Fill pdf forms

Looking for some stuff do manage pdf forms,I found this http://search.cpan.org/~clotho/CAM-PDF-0.99/ From http://search.cpan.org/src/CLOTHO/CAM-PDF-0.99/index.html "CAM::PDF is optimized for reading and manipulating existing PDF documents. We use CAM::PDF in production Linux environments to customize template PDF documents that were often created by non-programmers using standard tools." In standard distro there are already fdf2tan.pl and fdf2tex.pl, and after reading spec-fdf I don't understand if they work ( running fdf2tan.pl gives ! Undefined control sequence. <recently read> \annotatepages ). luigi