Translate Entire Documents and PDF Files with Google [Translation]
No need to copy all the text of that Dutch document or Portugese PDF and paste it into Google Translate. The free service can now translate entire files if you give it the URL.
Whether a file has been indexed by Google's search servers or not, paste in the link to the document, and Google Translate will convert it to HTML, translate it, and present you with the page in a handy viewer. You usually have to know the original language to help Translate get started, and Google Operating System's Alex noted that it only gave back the first nine pages of a PDF he gave it. For technical documents and other works you need a quick, mostly-legible read on, though, Google Translate's document tool is a killer app.