Let's see if I understand your requirement.
1 - you want to find out the margin size base on the page content
2 - you want to crop the page
iText can't do 1.
To do 2:
PdfReader reader = new PdfReader(...);
PdfDictionary page = reader.getPageN(1);
page.put(PdfName.CROPBOX, new PdfArray(new float[]{10, 20, 30, 40}));
//the visible page
PdfStamper stp = new PdfStamper(reader, ...);
stp.close();
Best Regards,
Paulo Soares
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Andrea Baccin
> Sent: Tuesday, September 21, 2004 9:47 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [iText-questions] PDF Cropping
>
> Leonard Rosenthol wrote:
>
> > At 11:47 AM 9/20/2004, Andrea Baccin wrote:
> >
> >> I have the needing of modify existing pdf files: I need to
> delete all
> >> white space in left and upper margin.
> >
> >
> > Do you just need to visually remove that area from
> display, or
> > actually change the physical PDF data to eliminate it?
> >
> > PDF supports a "crop box" which effects the visual display,
> > but doesn't actually remove anything from the PDF. That
> can easily be
> > set with PdfStamper. To do the latter would be a LOT of work and
> > require you to understand the internals of PDF - OR use a 3rd party
> > product that can do it for you.
> >
> I need only to visually remove that area from display and print. This
> can be easy done with the following code (I use iText Net):
>
> Dim Reader As New PdfReader("IN.pdf")
> Dim n As Integer = Reader.getNumberOfPages()
> Dim psize As Rectangle = Reader.getPageSize(1)
> Dim Document As New Document(psize, 1, 0, 1, 0)
> Dim Writer As PdfWriter = PdfWriter.getInstance(Document, New
> FileOutputStream("OUT.pdf"))
> Document.open()
> Dim cb As PdfContentByte = Writer.getDirectContent()
> Document.newPage()
> Dim page1 As PdfImportedPage =
> Writer.getImportedPage(Reader, 1)
> page1.moveTo(0, 0)
> cb.addTemplate(page1, 1.0F, 0, 0, 1.0F, -15, 85)
> Document.close()
>
> With the "addTemplate" I just set the x and y coordinates where I want
> to paste the imported page. The main problem is that Y value
> must change
> in function of the INput PDF. I've tried to use "getCropBox"
> but always
> return the PageSize.
> I've looked at PDFStamper API in
> http://itext.sourceforge.net/docs/com/lowagie/text/pdf/PdfStamper.html
> but I cannt find anything useful.
> I've attached IN.pdf and OUT.pdf in case you want take a look at it.
> Thanks a lot
> Andrea
>
>
>
>
>
>
>
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