The TexTexture panel appears in the N Panel of the Shader Editor.

The UI panel.

Input text

• Single line: Use this text field if your text is a single line.
• Multiline: Choose a text file from the .blend file, create a new one, or open a file on your hard drive.
• Font: Select a font from the .blend file, open a new one from your hard drive, or load Blender's built-in Bfont.

Text options

• Alignment: Left, center, and right alignment as well as justified and flush.
• Shear: Italicize the text by adding a forward or backward slant.
• Character spacing: horizontal space between letters.
• Word spacing: horizontal space between words.
• Line spacing: vertical space between lines of text.

Render options

• Resolution: Horizontal size in pixels for the generated texture.
• Padding: space in pixels to add around the edges of the texture.
• Samples: number of samples to use for rendering the texture.
• Render slot: slot to use for rendering the texture