Don't click on the scribd link, click on the original.

I think it's iniquitous that people here on HN, in all good faith, provide links to PDFs, and then scribd purloins the content. The original authors may never know that another site is providing their content without their permission. The result is that although scribd claim to honor take-down requests, such requests rarely materialise, even if the content originators would prefer it not to be there.

This is one aspect of HN that genuinely makes me feel grubby.

The PDF is also available at the ETH - http://www-old.oberon.ethz.ch/WirthPubl/AD.pdf

It is a HN bug becouse the link is not actually a pdf file. If the link ends with the pdf extension then adds the link [SCRIBD] to the url. In my opinion the link sender should add it himself IF he links to a pdf file.

   (def pdflink (url)
	  (awhen (vacuumize url)
		 (pr " [") 
		 (link "scribd" it)
		 (pr "]")))

   (defmemo vacuumize (url)
	  (and (or (endmatch ".pdf" url) (endmatch ".PDF" url))
			 (+ "http://www.scribd.com/vacuum?url= url)))