The ONLY program that I know of that will merge documents that large  
is Adobe Acrobat 7 or later.

Also, can you explain what sort of documents you are merging?  Is it  
possible that Acrobat 8's new "Package" feature would be a better  
solution for you?

Leonard

On Dec 19, 2006, at 3:49 AM, Davy Lee wrote:

>
> unfortunately, our client really need to merge a 2G or 3G  pdf  
> file, it would
> be at least 2G.
> any body can give me some hints to modify the ITEXT or find another  
> API?
> thanks so much..
>
> cheers,
> Davy lee
>
>
> Robert Engels wrote:
>>
>> iText uses a memory mapped file. You may not enough enough contigiuos
>> address space to map a file that large.
>>
>> iText needs to be changed to support a simple RandomAccessFile and
>> then it would work.
>>
>> Doesn't matter anyway, since two 1.6 gig files would be larger than 2
>> gig...
>>
>>
>> On Dec 18, 2006, at 3:43 AM, Davy Lee wrote:
>>
>>>
>>> When I tried to process two 1.6G pdf file, an error occured:
>>>
>>> java.io.IOException: Not enough storage is available to process
>>> this command
>>>         at sun.nio.ch.FileChannelImpl.map0(Native Method)
>>>         at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:742)
>>>         at
>>> com.lowagie.text.pdf.MappedRandomAccessFile.init
>>> (MappedRandomAccessFile.java:103)
>>>         at
>>> com.lowagie.text.pdf.MappedRandomAccessFile.<init>
>>> (MappedRandomAccessFile.java:87)
>>>         at
>>> com.lowagie.text.pdf.RandomAccessFileOrArray.<init>
>>> (RandomAccessFileOrArray.java:121)
>>>         at
>>> com.lowagie.text.pdf.RandomAccessFileOrArray.<init>
>>> (RandomAccessFileOrArray.java:80)
>>>         at com.lowagie.text.pdf.PRTokeniser.<init>(PRTokeniser.java:
>>> 108)
>>>         at com.lowagie.text.pdf.PdfReader.<init>(PdfReader.java:155)
>>>         at com.lowagie.text.pdf.PdfReader.<init>(PdfReader.java:145)
>>>         at sticker.Main.main(Main.java:60)
>>>
>>>
>>> it means that the error occured at :
>>>    reader = new PdfReader(new RandomAccessFileOrArray(fileList
>>> [docNum]),
>>> null);
>>>
>>> however, in the book "ITEXT in action" said: using new
>>> RandomAccessFileOrArray(fileList[docNum])
>>> in the pdfreader constructor will partial read the original file,  
>>> I'm
>>> confusing.
>>>
>>> if the error occurs in the pdfReader constructor, it will be still
>>> no useful
>>> to rewrite the pdfcopy class or
>>> the pdfwriter class.
>>>
>>> cheers,
>>> Davy Lee
>>>
>>>
>>>
>>>
>>> Paulo Soares wrote:
>>>>
>>>> The total size of the file can't be 2G so it would be like two 1G
>>>> files.
>>>> Doing this will always take a lot of time and a lot of memory
>>>> unless the
>>>> number of pages is small. To merge such big files efficiently
>>>> you'd have
>>>> to
>>>> create a customized PdfCopy.
>>>>
>>>> Paulo
>>>>
>>>> ----- Original Message -----
>>>> From: "Davy Lee" <[EMAIL PROTECTED]>
>>>> To: <[email protected]>
>>>> Sent: Monday, December 18, 2006 8:31 AM
>>>> Subject: Re: [iText-questions] How to merge two 3G size pdf fast
>>>>
>>>>
>>>>>
>>>>> Dear Paulo,
>>>>> even for two 2G pdf file, do u have a better sosution to merge  
>>>>> them,
>>>>> sometimes I don't need to modify the pages, sometime I do.
>>>>> cheers.
>>>>>
>>>>> Davy lee
>>>>>
>>>>>
>>>>> Paulo Soares wrote:
>>>>>>
>>>>>> You'll certainly won't use iText to do this. iText has a 2G size
>>>>>> limitation.
>>>>>>
>>>>>> Paulo
>>>>>>
>>>>>> ----- Original Message -----
>>>>>> From: "Davy Lee" <[EMAIL PROTECTED]>
>>>>>> To: <[email protected]>
>>>>>> Sent: Monday, December 18, 2006 4:11 AM
>>>>>> Subject: [iText-questions] How to merge two 3G size pdf fast
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> I have two 3G size pdf files, we need to use ITEXT to merge
>>>>>>> them into
>>>>>>> one
>>>>>>> single new pdf document.
>>>>>>> However, to do this will waste too much time to finished it. It
>>>>>>> would
>>>>>>> cost
>>>>>>> us about half days to finish
>>>>>>> to merging process. Do u guys have any new solution to do it?
>>>>>>> cheers.
>>>>>>> My code is below:
>>>>>>>
>>>>>>> //pdf files array list.
>>>>>>>        String [] fileList = {"sample1.pdf","sample2.pdf"};
>>>>>>>
>>>>>>>        Document document;
>>>>>>>        PdfCopy copy;
>>>>>>>        PdfReader reader;
>>>>>>>
>>>>>>>        try
>>>>>>>        {   // step 1
>>>>>>>            document = new Document();
>>>>>>>            // step 2
>>>>>>>             copy = new PdfCopy(document, new FileOutputStream(
>>>>>>>                            "sample_Combination.pdf"));
>>>>>>>            // step 3
>>>>>>>            document.open();
>>>>>>>            for(int docNum=0; docNum<fileList.length;docNum++)
>>>>>>>            {
>>>>>>>                reader = new PdfReader(new
>>>>>>> RandomAccessFileOrArray(fileList[docNum]), null);
>>>>>>>                int pages = reader.getNumberOfPages();
>>>>>>>                // step 4
>>>>>>>                for (int pageNum = 0; pageNum < pages; )
>>>>>>>                {
>>>>>>>                    ++pageNum;
>>>>>>>                    copy.addPage(copy.getImportedPage(reader,
>>>>>>> pageNum));
>>>>>>> }//iterate page loop.
>>>>>>>            }// iterate doc loop.
>>>>>>>
>>>>>>>            // step 5
>>>>>>>            document.close();
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>        }
>>>>>>>        catch(IOException e)
>>>>>>>        {
>>>>>>>            e.printStackTrace();
>>>>>>> }
>>>>>>>        catch (DocumentException e)
>>>>>>>        {
>>>>>>>            e.printStackTrace();
>>>>>>> }
>>>>>>>
>>>>>>> very big thanks in advance.
>>>>>>> -- 
>>>>>>> View this message in context:
>>>>>>> http://www.nabble.com/How-to-merge-two-3G-size-pdf-fast-
>>>>>>> tf2837983.html#a7923347
>>>>>>> Sent from the iText - General mailing list archive at  
>>>>>>> Nabble.com.
>>>>>>>
>>>>>>>
>>>>>>> ---------------------------------------------------------------- 
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>>>>>>
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>>>>>
>>>>> -- 
>>>>> View this message in context:
>>>>> http://www.nabble.com/How-to-merge-two-3G-size-pdf-fast-
>>>>> tf2837983.html#a7925099
>>>>> Sent from the iText - General mailing list archive at Nabble.com.
>>>>>
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>>>>
>>>>
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>>>
>>> -- 
>>> View this message in context: http://www.nabble.com/How-to-merge-
>>> two-3G-size-pdf-fast-tf2837983.html#a7925842
>>> Sent from the iText - General mailing list archive at Nabble.com.
>>>
>>>
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>>
>>
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>
> -- 
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> two-3G-size-pdf-fast-tf2837983.html#a7943588
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>
>
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