Make all layers visible by clicking each closed eye icon.

Note: The trim guide layer (bleed area) is now visible indicating where the printer will trim the mouse pad. The photo layer is under the text layer, so that the text is visible.

Double-click the existing text layer. The text window displays allowing you to change the
   existing text, change many font attributes (font, size, bold, italic, color, alignment).

Click OK when you are finished.

Click the Move Tool on the left to select it.

With the text layer still active, move the text to place it where you want within the artwork.

Note: The mouse pointer changes to a cross hair after clicking the Move Tool.