| Class | Description | |
|---|---|---|
 | PdfDocumentMetadata | Represents a root node of tree that stores metadata of PDF document. |
| PdfPageMetadata | Root node of tree which stores metadata of PDF page. |
| PdfPageTextRegionMetadata | A metadata node that stores information about text region of PDF page. |
| PdfPageThumbnailMetadata | Metadata node that stores thumbnail image of PDF page. |
| PdfPageVirtualMetadata | Root node of tree which stores metadata of PDF page. |
| PdfVintasoftBinaryAnnotationsMetadata | Metadata node that stores annotation packet in VintasoftBinary format for PDF page. |
| PdfVintasoftXmpAnnotationsMetadata | Metadata node that stores annotation packet in VintasoftXmp format for PDF page. |