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Opera Mini OBML file format

© 2016 Mantas Mikulėnas grawity@gmail.com

This documentation is released under CC BY 4.0.


OBML (Opera Binary Markup Language) files are self-contained, rendered versions of HTML documents generated by the Presto v2 engine. They are static, containing pixel-positioned regions adapted for a specific device's screen size & font metrics. (Thus OBML documents generated for one device tend to look slightly 'off' everywhere else, and a perfect rendering is impossible without knowing the original device.)