Printable version of questions/answers or entire discussion

Question

I don't know how kosher this is for online forums and whether there will be green-erds cringing, but how about adding a feature to be able to print a question/answer or even an entire discussion? Of course, over on Math.SX, LaTeX formatting is interpreted to present mathematics (via MathJax) as graphics in order provide a nice graphic context. But we also upload our own images (LaTeX output of MWEs, and the like) and provide formatted inline LaTeX and code snippets.

A similar question over on Stack Overflow mentions StackPrinter, which also provides some sample Stack Exchange printable versions as a demo on Stack Overflow and Stack Overflow Meta. This is, however, not entirely integrated into Stack Exchange as far as I know. How about integrating it into the TeX.SX user interface?

Options I'm thinking of include adding that to the list of "actions" one can perform on questions/answers - link edit print close flag. This would work well for questions or answers. But what about if you want to print an entire discussion (question and answers). Well, how about somewhere in the Tagged / Asked / Viewed / Active part of the right sidebar? This answer also provides a nice view of a location for seeing a printer-friendly version of a post (question/answer):

Opinions?

Answer 1

Paulo Cereda has developed the awesome TeXPrinter for precisely this purpose. It's a Java application with a very clean interface that takes a question ID and saves the question thread as a PDF or a TeX file. There's a video explaining the usage.

Answer 2

The generic printing option Stack Printer covers the entire Stack Exchange network.

For this question:

the PDF output resembles:

Answer 3

I have created a Greasemonkey script that injects the following css (for print) :

@media print {
  * {    
    visibility: hidden;
  }
  #content * {    
    visibility: visible;
  }
  header, #left-sidebar, #sidebar, form, .bottom-notice, .comments-link, .aside-cta {    
    display: none;
  }
  #mainbar {    
    width: 100%;
  }
  div.post-text {    
    page-break-inside: avoid;
  }
}

The style is not perfect, but hide some of the content to make the page more print friendly.