Esta resposta é relevante apenas para os documentos .odt
(Writer), não para os documentos .odp
(Impress).
Eu preciso extrair uma lista de fontes
Você pode usar a extensão TestFonts .
Searches for all font faces used in writer document and compare it with fonts available in system. Reporting for missing font faces, all used fonts and get statistic available system fonts. You can look for font name from report. Dialog is modal with zoom button now. Language: English, Czech, German, French.
Fonte TestFonts
Confirmado como trabalhando na versão do LibreOffice Writer: 5.2.4.2
Exemplo de saída :
File: F:\test\test\test.odt
Missing fonts - found: 0 times
Direct formatting fonts - found: 0 times
Fonts assigned to used paragraph styles - found: 1 times
Default Style Liberation Serif Regular
Fonts assigned to used character styles - found: 0 times
Available system fonts - found: 449 times
...