One month ago, I created a pdf from this web page. It's a quite big collection of (text-only) articles. In Acrobat, I chose to get 2 levels, stay on the same server and on the same path.
Since than, two new articles have been published on this web page.
Is there a way to update existing pdf file to include them as well? See, I don't want to capture the whole website every time they publish a new article.
Alternately (or if the page counts are now different), delete the affected pages in the original PDF, re-capture the new articles into a new PDF, and open them both at the same time. You can drag and drop pages from the thumbnails of one into the thumbnails of the other.