Choose PDF for a review copy
DOCX is designed for documents that may continue to be edited. PDF is commonly used when a page-based version should be read, reviewed, or printed without presenting the same editing surface. A PDF can make distribution more predictable across readers, but it does not guarantee that every viewer will render a complex document identically.
Use the PDF as a delivery copy when the wording and layout are ready for that stage. Keep the DOCX as the working source if colleagues still need to revise text, accept changes, or maintain reusable styles.