Increase font size of dive profile diagram labels in printed output

[Stefan Moers]

Hello everyone,

I’m currently customizing a print layout in Subsurface using the HTML/Jinja print templates, and overall this works very well.

However, I’m running into one issue with the dive profile diagram in the printed output (PDF / printer):

The axis labels, tick values and text inside the profile diagram are extremely small, making them hard to read on paper, especially when printing two dives per page or using a logbook with punched holes.

I could not find any option in the documentation or settings that allows adjusting the font size of the dive profile diagram specifically for printing.

So my questions are:

• Is there an official way to increase the font size of the dive profile diagram (axes, labels, numbers) for print output?

• Is this configurable via print templates, or is the diagram font size hardcoded?

• If not currently possible: is there a recommended workaround, or would this require a code change?

For context:

• I am using the built-in print functionality (HTML template based).

• CSS overrides work for the surrounding layout, but do not reliably affect the diagram text.

Any hints or pointers would be greatly appreciated.

Thanks a lot!

Stefan