Open action

JAVA

/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2023 Apryse Group NV
    Authors: Apryse Software.

    For more information, please contact iText Software at this address:
    sales@itextpdf.com
 */
/**
 * Formerly OpenAt100pct sample in iText 5
 */
package com.itextpdf.samples.sandbox.annotations;

import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.navigation.PdfExplicitDestination;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Paragraph;

import java.io.File;

public class SetOpenZoom {
    public static final String DEST = "./target/sandbox/annotations/open_at_100pct.pdf";

    public static void main(String[] args) throws Exception {
        File file = new File(DEST);
        file.getParentFile().mkdirs();

        new SetOpenZoom().manipulatePdf(DEST);
    }

    protected void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
        Document doc = new Document(pdfDoc, new PageSize(612, 792));
        doc.add(new Paragraph("Hello World"));

        // Set the height of a page to 842 points and zoom value to 1 (which means 100% zoom)
        PdfExplicitDestination zoomPage = PdfExplicitDestination.createXYZ(pdfDoc.getPage(1),
                0, 842, 1);
        pdfDoc.getCatalog().setOpenAction(zoomPage);

        doc.close();
    }
}

C#

using System;
using System.IO;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Navigation;
using iText.Layout;
using iText.Layout.Element;

namespace iText.Samples.Sandbox.Annotations
{
    public class SetOpenZoom
    {
        public static readonly String DEST = "results/sandbox/annotations/open_at_100pct.pdf";

        public static void Main(String[] args)
        {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();

            new SetOpenZoom().ManipulatePdf(DEST);
        }

        protected void ManipulatePdf(String dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
            Document doc = new Document(pdfDoc, new PageSize(612, 792));
            doc.Add(new Paragraph("Hello World"));

            // Set the height of a page to 842 points and zoom value to 1 (which means 100% zoom)
            PdfExplicitDestination zoomPage = PdfExplicitDestination.CreateXYZ(pdfDoc.GetPage(1),
                0, 842, 1);
            pdfDoc.GetCatalog().SetOpenAction(zoomPage);

            doc.Close();
        }
    }
}