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Why Converting Word Docs to HTML Never Looks Exactly the Same

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A developer tested a hand-crafted DOCX file — containing tables, footnotes, images, and WordArt — through a browser-based conversion tool to understand why Word documents do not translate cleanly to HTML. The core reason is structural: DOCX stores reflow parameters rather than fixed page coordinates, meaning the final layout must be recalculated using fonts and metrics on the reader's machine. Testing revealed three clear defects — incorrect page counts, a missing WordArt title rendering as an empty placeholder, and vanishing embedded OLE objects. By contrast, PPTX files use absolute coordinates and fixed canvas sizes, making them more reliably portable across formats. The developer's takeaway is a practical rule: fixed-layout formats convert into fixed layout, while reflowable formats like DOCX can only ever produce an approximation.

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