Alignment ist he horizontal placement of text in a placeholder in PowerPoint.
When you type text in a placeholder in Microsoft PowerPoint, it becomes a text object
solid line
If you add more text to a placeholder, like a text box, than the placeholder can contain, text resizes to a smaller font to fit in the placeholder. That is Autofit.
placeholder text
For objects such as pictures, graphics, text boxes etc., you have points around their edges and corners which define the dimensions of the object and allow you to change the size of the object.
the Autofit Options button
the Autofit Options button
text control
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The text may extend beyond the placeholder. If the option to wrap the text has been set, it can go onto a new line. The creator may take other approaches, such as changing the font size of the size of the placeholder or maybe rephrasing the text so that it is shorter.
Hidden text