The font size of pdf/email is different from dashboard

When I export the dashboard as email or pdf, I found the font size is much smaller than what I saw in dashboard. May I ask how to solve it ?

The current behavior of the PDF / Email is to optimize the font size to fit content into available page / paper size. You could experiment with reducing the number visuals, expanding visual size on the dashboard, and optimizing layout for better fit. We will also take this back as a feature request and triage for a future roadmap item. Thanks!