Kerning issues with small fonts

[john8329]

I'm having trouble creating small labels with WeasyPrint, when I format fonts with a small size (5pt and below) the kerning gets all messed up. See the screenshot for more details. Testing this seems trivial, but if it's not reproducible I'll share an example code.
No idea if it's a WeasyPrint issue or one of the other libraries, though it's not a big problem for me, I can do a transform: scale() trick and have it render nicely.

[liZe]

Hello!

Do you have this problem only when rendering PNGs, or also with PDFs?

[john8329]

Also with PNG (had to specify a resolution or it was unreadable). Could it be some floating point precision issue in the renderer?

[liZe]

It’s probably caused by hinting, always set in WeasyPrint when generating PNGs.

You can use the Python API to set enable_hinting=False in the render method, that’s probably the easiest solution to fix that right now.

[john8329]

Interesting, I'm going to make use of the API in the future for a tighter integration, though at the moment I don't have the time. For now I think I'll stick with the workaround, thanks.