splitTextToSize uses inverse scale factor

The documentation of splitTextToSize states it uses “measurement units declared as default for the jsPDF instance”. Thus when I define the constructor

let doc = new jsPDF('p', 'px', 'a4');

a line that spans the entire page should be 595.28pt * 96 / 72 = ~793.7 pixels wide. One would then expect that

let splitText = doc.splitTextToSize(longText, 793.7);
doc.text(splitText, 0, 0)

produces lines that spans the entire page, but this not the case.

A page-spanning line is achieved at ~446 pixels like so

let splitText = doc.splitTextToSize(longText, 446);
doc.text(splitText, 0, 0)

Now, 446 happens to be 595.28 / (96 / 72), or 595.28 * (72/96), leading me to conclude that, somehow, an inverse scale factor is being applied between pt and px when adding text

[HackbrettXXX]

The ‘px’ scaling factor is wrong per default. Try enabling the px_scaling hotfix and see if this gives the expected result.

[HackbrettXXX]

It’s documented in the jsPDF constructor API doc: http://raw.githack.com/MrRio/jsPDF/master/docs/jsPDF.html, but yeah, mentioning it in the readme as well is probably a good idea.