PDF stores final page layout, while Word needs editable paragraphs, tables, and style structure. PDF to Word must infer reading order and document structure from coordinates and font data, so columns, formulas, footnotes, tables, and scanned pages are difficult to reproduce exactly.
The tool is best for generating a DOCX editing draft. Text PDFs generally convert better than image-only scans; scans need OCR followed by manual restoration of heading hierarchy, lists, tables, and pagination.