Chris,
I would keep this as a single document with the articles at the back of the annual report. There are several reasons for this:
#1 The PDF of the annual report would then contain all the information, including the articles. I would imagine you would like the readers to be able to keep everything they’ve read in a single file.
#2 Publish Online isn’t going to let you jump to an outside document unless it’s a HTML page. Then you’ve got the difficulty of getting back to the original annual report which PubOnline won’t let you go to a specific page.
#3 It’ll be much easier to test the links.
How to do it:
#1 There’s a question as to whether you want single pages or spreads for the document. Spreads work better for the landscape view of a computer monitor. But that is going to confuse readers. In the PDF the page you think is page 4, will be page 3 in the PDF. Same confusion with PubOnline.
I would choose single pages.
#2 Put buttons on the masters for all the pages in the annual report. The first button should send the reader back one page. The second button should send the reader ahead one page. But you’ve got a little stumbling block to have the third button send the reader to jump to the landing page. If the landing page is the first or last page of the document, then you’re OK because there is an action for PDF buttons to go to the first or last page of a document.
#3 But if the landing page isn’t the first or last page, you’re going to have to define the landing page as a Hyperlink destination. Then the third button can be set to go to the Hyperlink Destination.
#4 Define the start of each article as a Hyperlink Destination. Then put a button on the annual report page that would send the reader to the article.
#5 Define the page that has the button created in step #4 as another Hyperlink Destination. Then put a button on the end of the article that would send the reader back to the page where they left off. Or a button on the article page that sends the reader back to the landing page.
#6 If you want two different landing pages, you’re going to HAVE to use Hyperlink Destination. Remember, you define the destination first, then create a button to go to it.
#7 One thing I’m wondering about. Why did you mention “hidden” pages. These article pages are going to be visible for anyone who just barrels through the PDF. Is it important that they are hidden? If so, let me think about how I would handle that.
OH, BTW, the buttons don’t have to be buttons. You can make selected text a link to go to the Hyperlink Destination.