Well... I found a bug in the code that uploaded the processed pdf (it actually
set transfer-mode to TEXT), so I got rid of the error.
But still the PDFs created with this class is different (in size) when running
on Solaris compared to Windows.
Is this perhaps because the internal write-process uses different linefeeds
when writing the document to the output-stream ?
/frode
From: Frode Halvorsen [mailto:frode.halvor...@ergogroup.no]
Sent: 21. oktober 2010 15:03
To: Post all your questions about iText here
Subject: [iText-questions] Is there a difference when running on Solaris and
Windows ?
Hi
I am using the class below to shrink every page in a PDF in order to make room
for an 15mm margin on both left and right edge.
When I call this in a Windows-environment things work fine, and the resulting
PDF is consisting of a set of 'shrinked' pages from the original with each page
'stamped' with the file-name I supply.
But when running the same code with the same PDF in a Solaris environment the
result is different, and I get an error-message when trying open the PDF
(Insufficent data for image).
I use binary transfer when transporting the pdf's to/from Solaris, and I am
sure that the byte[] used when calling this class is identical, as I control
the length of it just before calling this class.
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Utilities;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;
public class PdfEditor {
private static float points15mm = Utilities.millimetersToPoints(15);
private static Log log = LogFactory.getLog(PdfEditor.class);
public static byte[] schrinkImages(byte[] src, String docname) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
Document document = new Document(PageSize.A4);
PdfWriter writer = PdfWriter.getInstance(document, baos);
document.open();
PdfReader reader = new PdfReader(src);
int n = reader.getNumberOfPages();
log.info("Antall sider : " + n + " Rot
"+reader.getPageRotation(1) );
PdfImportedPage page;
float maxwidth = document.getPageSize().getWidth() -
points15mm * 2;
for (int i = 1; i <= n; i++) {
document.add(new Paragraph(" " + docname));
page = writer.getImportedPage(reader, i);
Image image = Image.getInstance(page);
image.scaleToFit(maxwidth, PageSize.A4.getHeight());
image.setAbsolutePosition(points15mm, points15mm);
image.setRotationDegrees(reader.getPageRotation(i)==270?90:0);
image.setCompressionLevel(9);
image.simplifyColorspace();
document.add(image);
document.newPage();
}
document.close();
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return baos.toByteArray();
}
}
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