How can I change paper size in headless Chrome --print-to-pdf
You can run headless chrome from Node environment.
Then you would be able to pass additional parameters to printToPdf function including pageWidth and pageHeight.
The page size could be set in inches/mm. I haven't tested with a size in pixels. Here is a set of CSS rules which did the trick for me:
@page { margin: 0; padding: 0; size: 5in 6.5in;}My exact case is rendering svg-to-pdf, not html; For svg, you may also need to add width and height attributes to <svg> tag:
<svg width="5in" height="6.5in" ...>That's all! Output PDF won't have margins, and will preserve the desired size - 5"x6.5" in my case.
There was a patch created sometime ago that enables page sizing configuration https://codereview.chromium.org/2829973002/
It is now closed and available in the unstable version of chrome, so you can use it as you suggested @page { size: A4 }.
I tested, it works on the unstable build I have installed (Google Chrome 61.0.3141.7 dev). I am not sure, though, how to check when it will be available in the stable build ...