[xep-support] Splitting of large document

[Mike Trotman]

I have successfully processed 100mB+ documents of 1000+ pages - mainly 
consisting of heavily formatted tables with 15 x 20 cells per page, 
multiple pages per table, lots of data per cell, footnotes etc.
This included bookmarks and a simple Table Of Contents with internal 
links to individual tables.

By placing each table / document chunk within a separate 
<fo:page-sequence> I was able to keep the memory requirements very low 
(not much more than the default).
I'm now also using XSLT pre-processing where I produce each 
<fo:page-sequence> in a separate XSL-FO file and generate  a master 
processing document which sets up regions and page masters
and contains a list of the separate <fo:page-sequence> files to include.
I then process this master list with a simple XSLT to produce the final 
FO for output to PDF.

I haven't used indexes (the TOC references etc. are constructed by the 
XSLT) - so don't know what sort of overhead this produces.


Mike

Brian J. Butler wrote:

> I have also been working on a very large document (88MB FO file, 2200 
> pages of technical text and drawings). I can offer the following three 
> suggestions:
>
> 1. Make sure your Java -Xmx size is as large as possible.  With 
> Windows this will be approximately -Xmx1600Mb.
> 2. Use the XEP flag to turn off PDF compression (in xep.xml or command 
> line).  This will result in a very large PDF, but you can compress it 
> after rendering by opening it in Adobe Acrobat and then saving.
> 3. Switch to a 64-bit Solaris platform (Opteron processors).  We 
> benchmarked one of these machines and found that we can -Xmx almost 
> unlimited memory.  The speed is also very fast.
>
> BJB
>
> Jost Klopfstein wrote:
>
>> Hi,
>>  
>> I ran into memory problems while rendering a large book with TOC, 
>> indexes and references between sections.
>> I first thought I could just render section by section into XEP 
>> intermediate format and then assemble the pieces with some custom 
>> code into a large PDF using the PDF output generator.
>> However I will loose the TOC, indexes and the references between 
>> sections.
>>  
>> Any ideas?
>>  
>> Thanks,
>> Jost
>>  
>> ------------------------------------------------------------------------
>> Jost Klopfstein
>> *Axos Technologies Inc.*
>> OnDemand & Transactional Document Solutions, powered by XML
>> IT Consulting
>>
>> *604 628-2248  Phone*
>> 604-324-2380  Fax
>> jost (at) axostech.com
>> http://www.axostech.com
>
>
>-- 
>Brian J. Butler
>BJB Software, Inc.
>76 Bayberry Lane
>Holliston, MA 01746
>
>E-mail: bjbutler at bjbsoftware.com
>Web:    http://www.bjbsoftware.com
>Phone:  508-429-1441
>Fax:    419-710-1867
>
>  
>




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