How to set orientation to Landscape in iText 7

问题

I am converting html to pdf using iText7 with method convertToPdf(). PDF is getting generated properly but Landscape mode is not working.

Can some one tell how to get Landscape mode?

import com.itextpdf.html2pdf.ConverterProperties;
import com.itextpdf.html2pdf.HtmlConverter;
import com.itextpdf.styledxmlparser.css.media.MediaDeviceDescription;
import com.itextpdf.styledxmlparser.css.media.MediaType;

import java.io.File;
import java.io.IOException;

import static com.itextpdf.html2pdf.css.CssConstants.LANDSCAPE;

public class htmlToPDF {

    public static void main(String args[]) throws IOException {

        ConverterProperties properties = new ConverterProperties();

        MediaDeviceDescription med = new MediaDeviceDescription(MediaType.ALL);
        med.setOrientation(LANDSCAPE);
        properties.setMediaDeviceDescription(med);

        HtmlConverter.convertToPdf(new File("D:\\test.html"), new File("D:\\test.pdf"),properties);
    }
}

回答1:

Please just use a converter method that takes PdfDocument as a parameter. For example, the next one : convertToPdf(InputStream htmlStream, PdfDocument pdfDocument, ConverterProperties converterProperties)

Now the only thing you need is to set the page size to the document before converting the html file.

    PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new File(sourcePath)));
    pdfDocument.setDefaultPageSize(PageSize.A4.rotate());
    HtmlConverter.convertToPdf(new FileInputStream(destPath), pdfDocument, props);

回答2:

You can use PageOrientationsEventHandler to handle orientation in your document like -

PdfDocument pdfDoc = new PdfDocument(new PdfWriter(DEST));
PageOrientationsEventHandler eventHandler = new PageOrientationsEventHandler();
pdfDoc.addEventHandler(PdfDocumentEvent.START_PAGE, eventHandler);
Document doc = new Document(pdfDoc);
doc.add(new Paragraph("A simple page in portrait orientation"));
eventHandler.setOrientation(LANDSCAPE);

check it in more detail here.

来源：https://stackoverflow.com/questions/54347293/how-to-set-orientation-to-landscape-in-itext-7

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