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To ensure true visual centering, any extraneous leading whitespace in the title text must be removed (e.g., on slide 2, \" Introduction\" becomes \"Introduction\"). The title placeholder shape itself should be positioned so that its text content appears approximately horizontally centered on the slide. Slides 1 and 10 use a manually positioned heading text box (not a standard title placeholder) that is already center-aligned by its own default paragraph style, so they remain visually unchanged. Slides 6 and 9 also use such a manually positioned heading text box rather than a standard placeholder, but in the original its heading paragraph carries an explicit left-alignment override; that override is removed so the heading text (\"DMP or Stamp?\" on slide 6 and \"Outlook/Access\" on slide 9) also becomes horizontally centered, consistent with the rest of the deck. 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