Looks like multivalent is subsampling the images or reducing the quality even
if it's not perceptible by you. iText adds the images as they are but you can
use JAI or some other graphical library to reduce the size of the images before
adding them.
Paulo
> -----Original Message-----
> From: srinivas.bodduluri [mailto:srinu.he...@gmail.com]
> Sent: Wednesday, July 29, 2009 6:20 AM
> To: itext-questions@lists.sourceforge.net
> Subject: [iText-questions] Problem with Pdf Size:Pdf Size is
> reduced by 87% When i ran IText Generated Pdf using
> Multivalent20060102.jar tool.
>
>
> Hello All,
> We are using IText 2.1.3 as part of our
> application to fulfill a
> critical business use case. As a module implementer i am very
> impressed with
> the IText library and more importently my client.
>
> There was one problem we are facing regarding to Pdf size is
> becoming very
> large. I am working on deeply from past few days to find the
> alternatives to
> reduce the IText generated pdf size. I found one java tool to
> compress the
> pdf file in sourceforge.net ie,. Multivalent20060102.jar and
> when i ran the
> original Pdf generated by IText in this tool surprisingly the
> size reduction
> is about 87% without loosing the quality of images.
>
> When i ran the tool it gives me the following output.
>
> C:\>java -cp Multivalent20060102.jar tool.pdf.Compress
> -compact -jpeg -old
> original.pdf
> file:/C:/Documents%20and%20Settings/BSrinivas/Desktop/original
> .pdf, 1226715
> bytes
> PDF 1.5, producer=iText 2.1.3 (by lowagie.com), creator=null
> additional compression may be possible with:
> -compact
> => new length = 158388, saved 87%, elapsed time = 1 sec
>
> When i created the Pdf without images there is no much
> compression by above
> tool. I am wondering did i made any programatical mistake in
> adding the
> images. I have attached the pdfs generated by IText
> "original.pdf" and when
> compressed using the tool "original-o.pdf"
>
> can any one help me in inspecting the original.pdf file in
> what metadata
> causing the pdf size to became huge.
>
> http://www.nabble.com/file/p24699273/original.pdf original.pdf
> http://www.nabble.com/file/p24699273/original-o.pdf original-o.pdf
> --
> View this message in context:
> http://www.nabble.com/Problem-with-Pdf-Size%3APdf-Size-is-redu
> ced-by-87--When-i-ran-IText-Generated-Pdf-using-Multivalent200
> 60102.jar-tool.-tp24699273p24699273.html
> Sent from the iText - General mailing list archive at Nabble.com.
>
>
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