- version => '3b',
- meta_data => {
- title => $self->displayable_name,
- author => $author,
- language => $pdf_language,
- },
+ version => '3b',
+ xmp => _create_xmp_data(
+ $self,
+ pdf_a_version => '3',
+ pdf_a_conformance => 'B',
+ producer => 'pdfTeX',
+ timestamp => $timestamp, # 2019-11-05T15:26:20+01:00
+ meta_data => {
+ title => $self->displayable_name,
+ author => $author,
+ language => $pdf_language,
+ },
+ zugferd => {
+ conformance_level => 'EXTENDED',
+ document_file_name => 'factur-x.xml',
+ document_type => 'INVOICE',
+ version => '1.0',
+ },
+ ),