Correct Ascender and Descender Calculations for Curvy Fonts
PHP class for PDF
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nicolaasuni
I have attached the discussion , please see if this qualifies as a bug.It will help in correct rendering of various types of fonts where the Ascender and Descender values are significant.
The solution can be different than what i proposed. depending upon the architecture of the code.
https://sourceforge.net/p/tcpdf/discussion/435311/thread/b44187a0/
Font ascent and descent values are already claculated by TCPDF, be sure you are using the latest version.