Adding text to your design is easy.  Start by dragging the text box of your choice onto your design.

Once you drag the text box to the desired location, to begin typing text, double click inside the text box.

If you wish to adjust the text size you can increase it at the top of your page.  You can also change the font type here as well.

You can also add increase the border thickness and change the color as well as change the fill color of the text box.

You can left, center or right align your text within the text box by clicking on the appropriate Paragraph selection.

You can resize your text box by dragging the squares around the text box.  You can also rotate the text by clicking and holding the circle at the top of your text box.