This is the help docs on stroking a path. https://docs.gimp.org/en/gimp-path-stroke.html
Bottom of that page, a short paragraph on using a paint tool. Works as it says.
Capturing
Depends on the (computer) tools you have available. I open a web page and the browser I use has a 'print to PDF' option. If you use Win10 it comes with a PDF printer, print to that, or there are free PDF printers around for Windows.
or
Not sure this is working in Windows, File -> Create -> From Web Page for a dump of the web-page as a long graphic image. Export that to PDF or some other format.
Bottom of that page, a short paragraph on using a paint tool. Works as it says.
Capturing
Depends on the (computer) tools you have available. I open a web page and the browser I use has a 'print to PDF' option. If you use Win10 it comes with a PDF printer, print to that, or there are free PDF printers around for Windows.
or
Not sure this is working in Windows, File -> Create -> From Web Page for a dump of the web-page as a long graphic image. Export that to PDF or some other format.