It’s easy to hide text in Word—you just assign a format.
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How to quickly remove all hidden text in Word
Tag: select-the-text
The usual routine for entering a text box into a Word document is to select the spot where you want the text box to appear, choose Text Box from the Insert menu, drag the insertion point until the text box is about the right size, and then enter the text.
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An efficient method for adding a text box to a Word document