Adding a cover page to an existing PDF

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
 */
package com.itextpdf.samples.sandbox.merge;

import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.utils.PdfMerger;

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

public class AddCover1 {
    public static final String DEST = "./target/sandbox/merge/add_cover.pdf";

    public static final String COVER = "./src/main/resources/pdfs/hero.pdf";
    public static final String RESOURCE = "./src/main/resources/pdfs/pages.pdf";

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

        new AddCover1().manipulatePdf(DEST);
    }

    protected void manipulatePdf(String dest) throws IOException {
        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
        PdfDocument cover = new PdfDocument(new PdfReader(COVER));
        PdfDocument resource = new PdfDocument(new PdfReader(RESOURCE));

        PdfMerger merger = new PdfMerger(pdfDoc);
        merger.merge(cover, 1, 1);
        merger.merge(resource, 1, resource.getNumberOfPages());

        // Source documents can be closed implicitly after merging,
        // by passing true to the setCloseSourceDocuments(boolean) method
        cover.close();
        resource.close();

        // The resultant pdf doc will be closed implicitly.
        merger.close();
    }
}

C#

using System;
using System.IO;
using iText.Kernel.Pdf;
using iText.Kernel.Utils;

namespace iText.Samples.Sandbox.Merge
{
    public class AddCover1
    {
        public static readonly String DEST = "results/sandbox/merge/add_cover.pdf";

        public static readonly String COVER = "../../../resources/pdfs/hero.pdf";
        public static readonly String RESOURCE = "../../../resources/pdfs/pages.pdf";

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

            new AddCover1().ManipulatePdf(DEST);
        }

        protected void ManipulatePdf(String dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
            PdfDocument cover = new PdfDocument(new PdfReader(COVER));
            PdfDocument resource = new PdfDocument(new PdfReader(RESOURCE));

            PdfMerger merger = new PdfMerger(pdfDoc);
            merger.Merge(cover, 1, 1);
            merger.Merge(resource, 1, resource.GetNumberOfPages());

            // Source documents can be closed implicitly after merging,
            // by passing true to the setCloseSourceDocuments(boolean) method
            cover.Close();
            resource.Close();
            
            // The resultant pdf doc will be closed implicitly.
            merger.Close();
        }
    }
}

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
 */
package com.itextpdf.samples.sandbox.merge;

import com.itextpdf.forms.PdfPageFormCopier;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;

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

public class AddCover2 {
    public static final String DEST = "./target/sandbox/merge/add_cover2.pdf";

    public static final String COVER = "./src/main/resources/pdfs/hero.pdf";
    public static final String RESOURCE = "./src/main/resources/pdfs/pages.pdf";

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

        new AddCover2().manipulatePdf(DEST);
    }

    protected void manipulatePdf(String dest) throws IOException {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(RESOURCE), new PdfWriter(dest));
        PdfDocument cover = new PdfDocument(new PdfReader(COVER));

        // Copier contains the additional logic to copy acroform fields to a new page.
        // PdfPageFormCopier uses some caching logic which can potentially improve performance
        // in case of the reusing of the same instance.
        PdfPageFormCopier formCopier = new PdfPageFormCopier();
        cover.copyPagesTo(1, 1, pdfDoc, 1, formCopier);

        cover.close();
        pdfDoc.close();
    }
}

C#

using System;
using System.IO;
using iText.Forms;
using iText.Kernel.Pdf;

namespace iText.Samples.Sandbox.Merge
{
    public class AddCover2
    {
        public static readonly String DEST = "results/sandbox/merge/add_cover2.pdf";

        public static readonly String COVER = "../../../resources/pdfs/hero.pdf";
        public static readonly String RESOURCE = "../../../resources/pdfs/pages.pdf";

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

            new AddCover2().ManipulatePdf(DEST);
        }

        protected void ManipulatePdf(String dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfReader(RESOURCE), new PdfWriter(dest));
            PdfDocument cover = new PdfDocument(new PdfReader(COVER));

            // Copier contains the additional logic to copy acroform fields to a new page.
            // PdfPageFormCopier uses some caching logic which can potentially improve performance
            // in case of the reusing of the same instance.
            PdfPageFormCopier formCopier = new PdfPageFormCopier();
            cover.CopyPagesTo(1, 1, pdfDoc, 1, formCopier);

            cover.Close();
            pdfDoc.Close();
        }
    }
}