How do I change the font size and style on pages?

Hello procuro,

To change the font in Pages on iPad you'll want to use the steps below:

1. Select the text you want to change—or tap a text box, shape, or table cell—then tap .

If you don’t see text controls, tap Cell or Text.

2. Do any of the following:

• Apply a different paragraph style: Tap the style name below Paragraph Style, then tap a new paragraph style (scroll to see more). You can’t apply a paragraph style to text in a table cell.

• Change the font: Tap Font, then tap a new font. To see more options for the font, tap  next to the font name, then tap a format (condensed, light, or semibold, for example).

• Apply bold, italic, underline, or strikethrough: Tap any of the buttons below Font.

• Change the size: Tap  next to Size to decrease or increase the font size, or tap the font size and enter a new value.

This resource also covers that process, along with the steps to adjust text using the keyboard: Change the look of text in Pages on iPad - Apple Support

To make adjustments to the font in Pages in macOS, you'll want to use the steps below:

1. Select the text you want to change.

To change all of the text in a text box or table cell, select the text box or table cell.

2. In the Format  sidebar, click the Style button near the top.

If the text is in a text box, table, or shape, first click the Text tab at the top of the sidebar, then click the Style button.

3. Click the Font pop-up menu, then choose a font.

4. Click the small arrows to the right of the font size to make the font larger or smaller.

You can also find those steps in this resource: Change the font or font size in Pages on Mac - Apple Support

Hopefully those steps and articles address your inquiry.

Take care.