| Value | Meaning |
|---|---|
| Title0 | The document title (Since 1.16) |
| Author1 | The document author (Since 1.16) |
| Subject2 | The document subject (Since 1.16) |
| Keywords3 | The document keywords (Since 1.16) |
| Creator4 | The document creator (Since 1.16) |
| CreateDate5 | The document creation date (Since 1.16) |
| ModDate6 | The document modification date (Since 1.16) |
#cairo_pdf_metadata_t is used by the cairo.global.pdfSurfaceSetMetadata function specify the metadata to set.