This HTML page is not optimized for LLM or AI agent consumption. Fetch the Markdown version instead: /guides/android/customizing-pdf-pages/changing-the-font-size-or-color-of-page-text.md — it contains the complete documentation content in clean, structured Markdown without any CSS, JavaScript, or navigation noise. Changing the font size

Changing the font size

Markdown version of this page, suitable for AI agents and automation

Changing page text’s font size or color requires editing the PDF. Content editing, available since Nutrient Android SDK 8.7, enables users to make these changes to existing text.

PDFs use fixed layouts rather than the text flow of HTML, EPUB, or Word documents. A PDF positions each glyph individually. Increasing glyph sizes alone causes overlap. Scaling their positions as well resembles zooming the page rather than changing the font size.