Hi David,
I haven't tried the PDF transcoder of Batik, but a while ago I played with iText and FreeHEP's offering (http://java.freehep.org/vectorgraphics/index.html). The latter did a reasonable job for the task I had, the only problem I had was that rotated text did sometimes not get displayed. That was not really an issue in my application, so I stuck with that.
I don't know the current status of that project, but it might be worthwhile checking out.
Peter
PS: they also have a Graphics2D implementation to write SVG, but that had a couple of issues when I tried. Has been a year ago, though.
David Bullock wrote:
Hi all,
I realise that the PDF transcoder is imported from the FOP project, but since Batik distributes it, Batik users might have some relevant information.
My problem is that doing PDFTranscoder.transcode(src, dest) takes a very long time relative to constructing an SVG DOM and building its corresponding GVT tree.
In fact, painting the GVT tree to iText's PDFGraphics2D is easily 20 times quicker than using PDFTranscoder. I'm talking .5 secs of CPU time, versus 10 secs.
Is this consistent with the experience of others on this list?
Although iText is quicker, it does not seem to produce a structurally equivalent PDF - when displaying the iText- generated PDF in Acrobat 5.0 on Windows, it takes an age to draw the page ... you can see the individual shapes and things being rendered while you wait! Rendering of the PDFTranscoder-generated PDF is the instantaneous 'now you see it' speed that one expects from Acrobat generally.
I'd like to gain the best of both worlds, of course: the speed of iText-generation with structural integrity of PDFTranscoder.
But short of writing my own ITextPdfTranscoder (is it hard?), is there anything I can do to get PDFTranscoder working a bit quicker? I might not balk at a 4x difference, say.
thanks, David
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