Resolve document fields before creating a copy
An ODT can contain page numbers, dates, cross-references, tables of contents, and other dynamic fields. Confirm that they show current values in the source application. The PDF freezes their display, so a stale field can travel with the document indefinitely.
For a report that changes regularly, preserve the ODT template and create a dated PDF for each approved issue. Include the revision or reporting period in the filename. This keeps the page copy traceable to the editable source and its calculation or approval context.