--- title: "Metadata" source: https://dev.pageseeder.com/reference/glossary/metadata.html last_updated: 2026-08-07T17:09:54+10:00 tokens: ~316 --- # Metadata The broad scope of PageSeeder has left some important terms with more than one meaning. “['document'](document.md)”, “[properties](properties.md)”, and “metadata” are all such terms. The uses of metadata are as follows: - **[Document metadata](document_metadata.md)** – also known as “metadata property” or “publication metadata”,  the [\](../../psml/elements/element-metadata.md) element is a container for name / value pairs on the content. They are editable and have basic types, or very specific types when combined with [Schematron](schematron.md). For further information, *see* this [tutorial](../../get_started/tutorials/substitute_lo-res_with_hi-res_images.md). - **[Universal Metadata Format](../../psml/universal_format/Universal_Metadata_Format.md)** – in this context, metadata is the same information as the `` element, but in the [Universal format](universal_format.md) packaging. Metadata also refers to derived or system information about the document or fragment: - **Document info** – the `` element acts as a wrapper for a number of document-level metadata fields, such as versions and [reverse cross-references](reverse_xref.md). - **Fragment info** – see the `` element.