The library that I am using for PDF generation is COM based and I'm using C#.
But as for convertor, even if that is a .java based library or something, I can always use that in my application...
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PDF Version Convertor
I need a PDF convertor that converts files from different PDF versions to PDF v1.3.
The requirement seems a bit strange but I am currently writing an application that merges various file types (.doc, .xls, .rtf, .ppt, .pdf) and then makes a PDF out of it. The library I had had a limitation that it only worked with pdf v1.3 files while merging. Now, the workaround I have in mind is that first convert all pdf files in the file list to v1.3 but not able to find out how to do it...
Can anyone help on this?
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Answers
What you want to do is a non-trivial task, and I doubt that you will find a solution for this that is PDF based. The problem is that you have to render your PDF to convert some of the features of PDF 1.4 or 1.5. For example transparency needs to be rendered to a non-transparent image in order to put it into a PDF 1.3 file. Layers (a PDF 1.5 feature) needs to be merged in order to make them 1.3 compatible. You could use Adobe's PDF library (5 digit price tag) for this.
One way to accomplish this is by converting the PDF files to Postscript first, and then back to PDF. You can do this with Ghostscript (http://www.ghostcript.com
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by: leeprovoostPosted on 2003-12-24 at 00:34:57ID: 9995708
in what language are you doing it?