1 Correct answer
Hi @ZNB ,
Your expectation is quite reasonable. I also expected ColdFusion would by now offer a way to extract the chapter metadata of a PDF. Especially because ColdFusion is, like PDF, within the Adobe family.
Perhaps, there is such a way. If there is, then I am unaware of it and shall be glad to hear about it.
It may indeed be a good idea to ask the client to put $XstartX$ and $XendX$, respectively, at the start and end of a chapter. Here, X is the chapter number. Using chapter numbers wi
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Hi @ZNB ,
Your expectation is quite reasonable. I also expected ColdFusion would by now offer a way to extract the chapter metadata of a PDF. Especially because ColdFusion is, like PDF, within the Adobe family.
Perhaps, there is such a way. If there is, then I am unaware of it and shall be glad to hear about it.
It may indeed be a good idea to ask the client to put $XstartX$ and $XendX$, respectively, at the start and end of a chapter. Here, X is the chapter number. Using chapter numbers will make the code simpler.
In any case, it is possible to get information about PDF chapters automatically. You could do so by using the iText PDF library integrated in ColdFusion to extract the PDF bookmark.
In the example below, I extract the bookmark of the Guy Kawasaki PDF ebook. From it, I could construct an array of chapter-start-pages, as defined in my previous code. What remains is for you to find a way to define the chapter-end-pages.
<cfset reader = CreateObject("java", "com.lowagie.text.pdf.PdfReader").init("C:\Users\bkbk\Desktop\kawasaki\The Art of the Start 2.0 - Guy Kawasaki.pdf")>
<cfset simpleBookmark = createObject("java","com.lowagie.text.pdf.SimpleBookmark")>
<cfset bookmarks = simpleBookmark.getBookmark(reader)>
<cfif isNull(bookmarks)>
No bookmarks.
<cfabort>
</cfif>
<cfset chapterStartPages = arrayNew(1)>
<cfset iterator = bookmarks.listIterator()>
<cfloop condition="iterator.hasNext()">
<!--- A HashMap --->
<cfset bookmark = iterator.next()>
<!--- Debugging code.
Shows you an object containing chapter titles and page numbers,
if there are any.
ColdFusion will tell you that this object is a struct.
But it is not; it is a HashMap.
--->
<!---<cfdump var="#bookmark#">--->
<cfoutput>
<cfif not isNull(bookmark.get('Kids'))>
<cfloop from="1" to="#arrayLen(bookmark.get('Kids'))#" index="i">
<cfif bookmark.get('Kids')[i]['Title'] contains "chapter">
<cfset title = trim(bookmark.get('Kids')[i]['Title'])>
<cfset pageNumber = listGetAt(trim(bookmark.get('Kids')[i]['Page']),1," ")>
<p>
Chapter Title: <strong>#title#</strong> <br>
Chapter Start-Page: <strong>#pageNumber#</strong>
</p>
<cfset arrayAppend(chapterStartPages,pageNumber)>
</cfif>
</cfloop>
</cfif>
</cfoutput>
</cfloop>
<cfdump var="#chapterStartPages#" label="Chapter Start Pages">
The output is:
Je reprends mon exemple :
1er cas : appartient au chapitre X
Page + illustration 1 (Which chapter does this belong to?)
Début: Chapitre XI
2ème cas : appartient au chapitre XI
Début: Chapitre XI
Page + illustration 1 (Which chapter does this belong to?)
By @ZNB
I now understand. In fact, we're both asking the same question.
It is what I meant when I asked:
...to which chapter do the extra pages between the end of chapter 5 and the beginning of chapter 6 belong?
By @BKBK
I then added:
To answer that question requires some knowledge of the content and context.
This means that you have to know whether the content of the extra page belongs to Chapter X or to Chapter XI. Which implies that you won't be able to do this programmatically; you have to do it manually.
I am sorry that I don't know how to automate PDF page-handling at page level, using ColdFusion. Like you, I don't know whether Adobe has a tag or function to denote PDF page-change. Nevertheless, the iText library might be of help. The iText code I gave earlier corresponds to:
1er cas : appartient au chapitre X
Page + illustration 1 (Which chapter does this belong to?)
Début: Chapitre XI
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