QWebEnginePage::printToPdf output differs from Chrome

Tarae

My simple html file:

<!DOCTYPE html> <html>
<body>
<h1 style="font-size: 100px">This is a Heading</h1> 
</body>
</html>

When I print it to pdf in Chrome (Margins: None, Scale: Default), text fits to one line. In chromium it's same.
But printing it using QWebEnginePage::printToPdf with layout = QPageLayout(QPageSize(QPageSize::A4), QPageLayout::Portrait, QMarginsF(0,0,0,0)); produces pdf file containing two lines. Text is bigger. Why?
How can I make it print same file as Chrome? Or how can I make Chrome print same file as QWebEnginePage::printToPdf?

You can check pdf files on drive: https://drive.google.com/drive/folders/1-NQJGwLL9M--q7tURUdTrFXHcikR8j2C?usp=sharing

jsulm

@Tarae I guess you need to reduce font size?

JonB

@Tarae
You could print each of them to file and then have a look at the PDF, e.g. the font sizes, to see if you can see how they differ and what you might do about it?

Tarae

@jsulm @JonB thanks for your advice. Problem wasn't font size. But I look at files using pdffonts a there was a problem. Chrome uses fonts set in chrome://settings/fonts but QWebEngine uses different fonts.