Examples for Subscripts / Superscripts?

[hikaru150s]

Is there any way to set portion of text to subscripts/superscripts?
If it's not implemented, could you tell me where it could be implemented?

Thanks

[rkusa]

This is not supported it pdfjs right now. I haven't looked in detail into how to make this happen, but I am aware of the Ts command in the PDF specification:

Set the text rise, Trise, to rise, which is a number expressed in unscaled text space
units. Initial value: 0.

This and/or font-size and baseline changes are probably the tools to make it happen. https://github.com/rkusa/pdfjs/blob/master/lib/text.js#L331 might be a good place to make adjustments for subscripts/superscripts text.