PDFminer: extract text with its font information

Question

I find this question, but it uses command line, and I do not want to call a Python script in command line using subprocess and parse HTML files to get the font information.

Answer 1

Some informations are in lower level, in the LTChar class. It seems logic because font size, italic, bold, etc, can be applied to a single character.

More infos here : https://github.com/euske/pdfminer/blob/master/pdfminer/layout.py#L222

But I'm still confuse about font color not in this class