Pdfmake: Does anyone know how to set the pageSize properly for a thermal printer?

[qgliu]

The printer size has width of 3 1/2''

[fdoddridge]

I'm printing to a TPG A799. I set the width to 300, and the height to something large enough that it won't page wrap... like 3000. Just experiment a bit, you'll find the right size.

[qgliu]

Thanks a lot. In the Wiki or demo page, it might be worth including the unit of these numbers. I was experimenting to find if they are inch, cm, mm, or pixel based.

[techana]

The formula for calculating width and height values for a page is:
value in inch * 72
or
value in mm / 0.35277

See here: https://en.wikipedia.org/wiki/Point_(typography)