Sometimes you need to tweak or slightly redesign an existing web page without original assets. Some common ways to do this would be to recreate a page from scratch, tweak it in a web inspector, or in the worst case make a screenshot and mess with bitmap (if you enjoy pain). Another hacky way to do that is to actually convert the web page to a vector graphic. Here is how I do it:
1. Convert page to SVG
Option one: Use http://derailer.org/paparazzi/ like so https://www.youtube.com/watch?v=9cgHQyXm4_Y to import a page into sketch. If it doesn’t work well try option two.Option two: Go to http://www.hiqpdf.com/demo/ConvertHtmlToSvg.aspx and insert the desired URL of a web page and the screen size.
Note: Sometimes you want to access a page behind a login, or an offline document. You can use this chrome extension http://cl.ly/VRdx to save a webpage as a single document and feed its internal code to hiqpdf converter.