Germany's Bild daily, the biggest-selling European newspaper, plans to make readers pay for part of its online content from early next month, it said in its Tuesday edition. In what it calls a "freemium model", it will continue to provide free-access news on its popular website Bild.de but also offer premium content packages for subscription fees. Readers who buy its print edition will be able to access the extra online content using a "Day Pass", an individualised code unique to their daily copy.