Javascript in batch sequence

Question

I've done some Acrobat scripting but mostly through VB and I'm able to write what I need but I want to have it as part of my operator's Acrobat instead of the of separate program. That said, I want to write a Java script that I can include in batch sequence.
I need to add a page to the start of a document and I want to have that page be nubered "a" without disturbing the numbering else where in the file. By simply adding the page at the start with the batch sequence it adopts the numbering of the first page. So if the first page is numbered as "i" then the new inserted page gets numbered "i" and the rest of the numbering changes, what was i becomes ii, what was ii becomes iii, and so on. I'm able to script this in VB by adding the page at the end, renumber them using the SetPageLabels from a Javascript object, then moving the page to the beginning.
Is there any documentation on using Javascript within a batch sequence?
Thanks,
Ken

Answer 1

Well, hacking along here working in the console pasting my code in.
The script adds a single page from another Acrobat file to the start of the open PDF. I need the page that goes in at the front to be numbered "a" and NOT effect numbering in the rest of the pages. Some files work fine, other files not so much, like the Javascript API reference PDF as well as other PDFs we've created here form InDesign.
The script inserts a page at the end of the PDF and numbers that page "a" then moves it to the start of the document. The problem occurs when the page is moved to the start, it changes the number of all the other pages to follow page "a" which is a bit of a silly thing to have to send my clients. I decided to compromise and if the first page (before I insert the anything) was numeric I would simply try changing things to start page 1 after my inserted page "a".
My code looks like this:
var NumPages = this.numPages
var PgLabel = this.getPageLabel(0)
this.insertPages(NumPages-1, "/F/TNTSTUFF/Disclaimers/HUP_ProofNotice.pdf")
this.setPageLabels(NumPages,["a", "", 1]);
this.movePage(NumPages, -1)
if (PgLabel.match("((-|\\+)?[0-9]+(\\.[0-9]+)?)+")) {  
        this.setPageLabels(1, ["1", "", 1]);  
However, the setPageLabels command is causing this error:
RaiseError: The base pages object is missing or invalid.
Doc.setPageLabels:7:Console undefined:Exec
===> The base pages object is missing or invalid.
I'm not sure it is relavent, but on the files that work the numbering in Acrobat looks like this with the parentheical numbers:
Files that DON'T work look like this, with NO parenthetical:
Even if I manually renumber the pages starting with 2 to make the numbering in the 2nd file look more like the numbering in the first file, I still get the error.
Is there a way I can overcome this with Java code and what the heck is it?
Thanks again to anyone who can help.
Best,
Ken