You probably know that on many Web pages you can make a link directly to a
specific spot within the page. For instance, let's say
you wanted to point someone to the information about the Web Site Design SIG —
it's at this Web address (URL):
http://groups.melbpc.org.au/
But there's a lot of other information on that page and you can be even more
helpful by directing your friend right to the relevant
part of the page, by writing it like this:
http://groups.melbpc.org.au/#Webdes
Where there's a marker in a Web page, called a "named anchor", you can link
directly to that spot by adding the name of the anchor
(in this case "Webdes") onto the end of the URL with a # symbol.
Well, you've probably seen that trick before — but did you know the same idea
also works for PDF files? There's something about
PDF files on the Web, isn't there? They're often huge and they're always harder
to navigate than a normal Web page — so much
the better then if you can offer a link that takes people straight to the
required page.
Let's say you also want to recommend some books on Web development to your
friend. Well, the Melbourne PC User Group library
listing is available at:
http://www.melbpc.org.au/library/Library.pdf
But it's 26 pages long! How could you help your friend locate the relevant
books? They are listed at the bottom of page 6 and the
top of page 7 (see Figure 1), so perhaps you could provide a link that goes
straight to the top of page 7:
http://www.melbpc.org.au/library/Library.pdf#page=7
Do you see how it works? Nominate the appropriate page number and add it to the
URL with a # symbol. And unlike Web pages, this
works for all PDF files without any need for them to have special anchors
included.
There are several of these "open parameters" that you can play with, for
example:
http://partners.adobe.com/public/developer/en/acrobat/PDFOpenParams.pdf#page=
5&pagemode= bookmarks&view=fitbh,400
Since I was shown this trick by a friend at work, I've used it frequently and I
reckon you'll find it handy as well.
For more information on "named anchors" in Web pages, see:
the HTML specification
http://www.w3.org/FR/htmI401/struct/links.html#h-12.2.1
Or
W3Schools
http://www.w3schools.com/html/html_links.asp
For more information on PDF "Open Parameters", see:
http://partners.adobe.com/public/developer/en/acrobat/PDFOpenParams.pdf
Reprinted from the September 2006 issue of PC Update, the magazine of Melbourne PC User Group, Australia