The text string to overlay on the image.

This value must be supplied for text to be rendered—all other text parameters are ignored if it is not set. Using the txt parameter is best for single-line text.

The txt parameter has the following defaults if none of the other text parameters are set:

• Color: #444444
• Font: sans-serif
• Size: 12px
• Padding: 0
• Position: Bottom right corner

Text default param: txt=GOOD MORNING

txt=GOOD MORNING&txt-size=30&txt-align=center,middle

txt=GOOD MORNING&txt-size=25&txt-rot=90