w3capture

w3capture lets you convert multiple webpages to PDF or image files with images and formatting intact, no matter how long the webpage is.

Multi-threaded batch conversions allow the user to convert an unlimited number of different webpages from different URLs into one PDF file. It can also convert any number of different webpages to their own separate PDFs or image files, at the same time. And it's fast: save entire webpages to PDF files in seconds!

w3capture is an HTML- and TXT-file capture tool that enables you to create thumbnail images or take full-size screenshots, converting them to PNG, JPG, BMP, SVG, or PDF format.