Request new function, global add font or clone existing jsPdf instance

[BH4EHN]

I'm building a website use NodeJS, output PDF for customers.
Currently, I call addFileToVFS() and then addFont() before every time actual draw pdf content, and this two function only cost
seconds.

Is there a way to add font once and clone the jsPdf instance every time I use it, or add font to some "global object" then every new jdPdf instance can use the font?
What is the best practice for NodeJS application (eg. website) for generating PDF using jsPDF with custom fonts?

[HackbrettXXX]

The call to addFileToVFS is actually very cheap, so this is not the issue. Just hold the font data in memory between calls. What's a little more expensive is the addFont call. It parses the font data. Here I agree that it would be nice to be able to share the parsed font between different jsPDF instances.

[BH4EHN]

@HackbrettXXX
After read the code, I found every time create new instance of jsPDF, standard font is added, after install custom font, the fonts and fontmap is almost readonly. So in last several days I forked this project, and "expose" the inner fonts and fontmap object and make add standard fonts as a function should called manually.
And when my web application start, I create a jsPDF instance and call add standard fonts, then add custom fonts, then save the fonts and fontmap object, and restore these two object in further new jsPDF instance. This works fine for now.

[HackbrettXXX]

Alright. Glad you found a workaround. I think, if we want to build this into the library, we should probably expose the TTFFont class and make addFont accept a TTFFont object, as well.

[BH4EHN]

I think so too. And I'm still thinking better way to do this than simply expose the font and fontmap