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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