Check out Raymond Camdens pdfutils (http://pdfutils.riaforge.org/)
It allows the text from a pdf to be read page by page.
It has enabled me to do a workaround fix for the problem where cfdocument does not support
style="page-break-inside: avoid;"
The following code is not overly efficient, in that it recreates the entire report for each instance where
a page break needs to be repositioned, but the preliminary test results look good. Others may like to embellish the following.
It creates hidden fields in the pdf, formatted as
keep_together_start_001, keep_together_end_001, keep_together_start_002, keep_together_end_002 etc
If the matching tags are not on the same page, then the pdf is recreated with an appropriate page break.
In the style sheet
div.hidden1{position:absolute;
left:-3000px;
top:auto;
width:1px;
height:1px;
overflow:hidden;}
div.hidden2{position:absolute;
left:-4000px;
top:auto;
width:1px;
height:1px;
overflow:hidden;}
On initialisation of the page that creates the pdf
<cfif not isdefined("url.keep_together")>
<cfset session.keep_together_list = "">
<cfset keep_together_count = 0>
</cfif>
...
At the start of a section of output that I want kept together, put the following
<cfset keep_together_count += 1>
<cfif ListFind(session.keep_together_list,"#NumberFormat(keep_together_count,"000")#","|") gt 0>
<cfdocumentitem type="pagebreak"></cfdocumentitem>
<cfelse>
<cfoutput>
<div class="hidden1">keep_together_start_#NumberFormat(keep_together_count,"000")#</div>
</cfoutput>
</cfif>
...
At the end of the section to be kept together
<cfif ListFind(session.keep_together_list,"#NumberFormat(keep_together_count,"000")#","|") eq 0>
<cfoutput>
<div class="hidden2">keep_together_end_#NumberFormat(keep_together_count,"000")#</div>
</cfoutput>
</cfif>
Once the PDF file has been created, use Raymond's pdfutils to check each page for a start without a matching end.
If found, indicate which section of code need to have a page break inserted before it, and then reproduce the report.
<!--- Check for keep_togethers that were split --->
<cfset pdf = createObject("component", "pdfutils")>
<cfset mypdf = expandPath("my_report.pdf")>
<cfset pdf_struct = pdf.getText(mypdf)>
<cfloop index="idx" from="1" to="#ArrayLen(pdf_struct)#">
<cfset next_start = 1>
<cfset start_offset = findnocase("keep_together_start_", pdf_struct[idx].text, next_start)>
<cfloop condition="start_offset neq 0">
<cfset next_start = start_offset + 20>
<cfset keep_together_id = Mid(pdf_struct[idx].text,start_offset + 20,3)>
<cfset end_offset = findnocase("keep_together_end_#keep_together_id#",pdf_struct[idx].text)>
<cfif end_offset eq 0>
<cfset session.keep_together_list = session.keep_together_list & "|" & keep_together_id>
<cflocation addtoken="No" url="sft_report.cfm?keep_together">
</cfif>
<cfset start_offset = findnocase("keep_together_start_", pdf_struct[idx].text, next_start)>
</cfloop>
</cfloop>
Message was edited by: Phil0707 - tidied up a few things - works well now
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