How can I detect the fontsize of a character in a pdf document using javascript

[andreasw43969493]

I would like to automatically identify and edit the headlines of pdf text documents (newspaper articles). As the fontsize of headlines use to be larger than the text body, I could identify the beginning and the end of a headline by screening the fontsize changes of characters. Unfortunatelly I have not yet found a javascript method of dectecting fontsizes, while this information is provided in the UI - even for proprietary fonts. Can anybody help?

[Thom Parker · Accepted solution]

Use the "doc.getPageNthWordQuads()" function.  It returns 4 points, one for each corner of the bounding box of a word on the page. The height of this box is the font size.

[andreasw43969493]

Many thanks for this advice. It works perfectly.

[try67]

You can't edit static text using a script, though. Not directly, anyway.