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iText Jump-Start Tutorial : Chapter 7

The following examples relate to Chapter 7 of the iText Core Jump-Start Tutorial (Java/.NET)

c07e01_quickbrownfox_pdfua

JAVA
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 tutorial.chapter07;

import com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.font.PdfFontFactory.EmbeddingStrategy;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfDocumentInfo;
import com.itextpdf.kernel.pdf.PdfString;
import com.itextpdf.kernel.pdf.PdfViewerPreferences;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.WriterProperties;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Text;
import java.io.File;
import java.io.IOException;

public class C07E01_QuickBrownFox_PDFUA {
    public static final String DOG = "src/main/resources/img/dog.bmp";
    public static final String FOX = "src/main/resources/img/fox.bmp";
    public static final String FONT = "src/main/resources/font/FreeSans.ttf";
        
    public static final String DEST = "results/chapter07/quick_brown_fox_PDFUA.pdf";
    
    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C07E01_QuickBrownFox_PDFUA().createPdf(DEST);
    }
    
    public void createPdf(String dest) throws IOException {
        PdfDocument pdf = new PdfDocument(new PdfWriter(dest, new WriterProperties().addUAXmpMetadata()));
        Document document = new Document(pdf);

        //Setting some required parameters
        pdf.setTagged();
        pdf.getCatalog().setLang(new PdfString("en-US"));
        pdf.getCatalog().setViewerPreferences(
                new PdfViewerPreferences().setDisplayDocTitle(true));
        PdfDocumentInfo info = pdf.getDocumentInfo();
        info.setTitle("iText PDF/UA example");

        //Fonts need to be embedded
        PdfFont font = PdfFontFactory.createFont(FONT, PdfEncodings.WINANSI, EmbeddingStrategy.FORCE_EMBEDDED);
        Paragraph p = new Paragraph();
        p.setFont(font);
        p.add(new Text("The quick brown "));
        Image foxImage = new Image(ImageDataFactory.create(FOX));
        //PDF/UA: Set alt text
        foxImage.getAccessibilityProperties().setAlternateDescription("Fox");
        p.add(foxImage);
        p.add(" jumps over the lazy ");
        Image dogImage = new Image(ImageDataFactory.create(DOG));
        //PDF/UA: Set alt text
        dogImage.getAccessibilityProperties().setAlternateDescription("Dog");
        p.add(dogImage);

        document.add(p);
        document.close();
    }
}
C#
C# 
using System;
using System.IO;
using iText.IO.Font;
using iText.IO.Image;
using iText.Kernel.Font;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;

namespace Tutorial.Chapter07 {
    public class C07E01_QuickBrownFox_PDFUA {
        public const String DOG = "../../../resources/img/dog.bmp";

        public const String FOX = "../../../resources/img/fox.bmp";

        public const String FONT = "../../../resources/font/FreeSans.ttf";

        public const String DEST = "../../../results/chapter07/quick_brown_fox_PDFUA.pdf";

        public static void Main(String[] args) {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            new C07E01_QuickBrownFox_PDFUA().CreatePdf(DEST);
        }

        public virtual void CreatePdf(String dest) {
            PdfDocument pdf = new PdfDocument(new PdfWriter(dest, new WriterProperties().AddUAXmpMetadata()));
            Document document = new Document(pdf);
            //Setting some required parameters
            pdf.SetTagged();
            pdf.GetCatalog().SetLang(new PdfString("en-US"));
            pdf.GetCatalog().SetViewerPreferences(new PdfViewerPreferences().SetDisplayDocTitle(true));
            PdfDocumentInfo info = pdf.GetDocumentInfo();
            info.SetTitle("iText7 PDF/UA example");
            //Fonts need to be embedded
            PdfFont font = PdfFontFactory.CreateFont(FONT, PdfEncodings.WINANSI, 
                PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
            Paragraph p = new Paragraph();
            p.SetFont(font);
            p.Add(new Text("The quick brown "));
            iText.Layout.Element.Image foxImage = new Image(ImageDataFactory.Create(FOX));
            //PDF/UA: Set alt text
            foxImage.GetAccessibilityProperties().SetAlternateDescription("Fox");
            p.Add(foxImage);
            p.Add(" jumps over the lazy ");
            iText.Layout.Element.Image dogImage = new iText.Layout.Element.Image(ImageDataFactory.Create(DOG));
            //PDF/UA: Set alt text
            dogImage.GetAccessibilityProperties().SetAlternateDescription("Dog");
            p.Add(dogImage);
            document.Add(p);
            document.Close();
        }
    }
}

c07e02_quickbrownfox_pdfa_1b

JAVA
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 tutorial.chapter07;

import com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.font.PdfFontFactory.EmbeddingStrategy;
import com.itextpdf.kernel.pdf.PdfAConformanceLevel;
import com.itextpdf.kernel.pdf.PdfOutputIntent;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Text;
import com.itextpdf.pdfa.PdfADocument;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class C07E02_QuickBrownFox_PDFA_1b {
    public static final String DOG = "src/main/resources/img/dog.bmp";
    public static final String FOX = "src/main/resources/img/fox.bmp";
    public static final String FONT = "src/main/resources/font/FreeSans.ttf";
    public static final String INTENT = "src/main/resources/color/sRGB_CS_profile.icm";

    public static final String DEST = "results/chapter07/quick_brown_fox_PDFA-1b.pdf";

    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C07E02_QuickBrownFox_PDFA_1b().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException {
        //Initialize PDFA document with output intent
        PdfADocument pdf = new PdfADocument(new PdfWriter(dest),
            PdfAConformanceLevel.PDF_A_1B,
            new PdfOutputIntent("Custom", "", "http://www.color.org",
                    "sRGB IEC61966-2.1", new FileInputStream(INTENT)));
        Document document = new Document(pdf);

        //Fonts need to be embedded
        PdfFont font = PdfFontFactory.createFont(FONT, PdfEncodings.WINANSI, EmbeddingStrategy.FORCE_EMBEDDED);
        Paragraph p = new Paragraph();
        p.setFont(font);
        p.add(new Text("The quick brown "));
        Image foxImage = new Image(ImageDataFactory.create(FOX));
        p.add(foxImage);
        p.add(" jumps over the lazy ");
        Image dogImage = new Image(ImageDataFactory.create(DOG));
        p.add(dogImage);

        document.add(p);
        document.close();
    }
}
C#
C# 
using System;
using System.IO;
using iText.IO.Font;
using iText.IO.Image;
using iText.Kernel.Font;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;
using iText.Pdfa;

namespace Tutorial.Chapter07 {
    public class C07E02_QuickBrownFox_PDFA_1b {
        public const String DOG = "../../../resources/img/dog.bmp";

        public const String FOX = "../../../resources/img/fox.bmp";

        public const String FONT = "../../../resources/font/FreeSans.ttf";

        public const String INTENT = "../../../resources/color/sRGB_CS_profile.icm";

        public const String DEST = "../../../results/chapter07/quick_brown_fox_PDFA-1b.pdf";

        public static void Main(String[] args) {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            new C07E02_QuickBrownFox_PDFA_1b().CreatePdf(DEST);
        }

        public virtual void CreatePdf(String dest) {
            //Initialize PDFA document with output intent
            PdfADocument pdf = new PdfADocument(new PdfWriter(dest), PdfAConformanceLevel.PDF_A_1B, new PdfOutputIntent
                ("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", new FileStream(INTENT, FileMode.Open, FileAccess.Read
                )));
            Document document = new Document(pdf);
            //Fonts need to be embedded
            PdfFont font = PdfFontFactory.CreateFont(FONT, PdfEncodings.WINANSI, 
                PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
            Paragraph p = new Paragraph();
            p.SetFont(font);
            p.Add(new Text("The quick brown "));
            iText.Layout.Element.Image foxImage = new Image(ImageDataFactory.Create(FOX));
            p.Add(foxImage);
            p.Add(" jumps over the lazy ");
            iText.Layout.Element.Image dogImage = new iText.Layout.Element.Image(ImageDataFactory.Create(DOG));
            p.Add(dogImage);
            document.Add(p);
            document.Close();
        }
    }
}

c07e02_quickbrownfox_pdfa_1a

JAVA
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 tutorial.chapter07;

import  com.itextpdf.io.font.PdfEncodings;
import com.itextpdf.io.image.ImageDataFactory;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.font.PdfFontFactory.EmbeddingStrategy;
import com.itextpdf.kernel.pdf.PdfAConformanceLevel;
import com.itextpdf.kernel.pdf.PdfOutputIntent;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Text;
import com.itextpdf.pdfa.PdfADocument;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class C07E02_QuickBrownFox_PDFA_1a {
    public static final String DOG = "src/main/resources/img/dog.bmp";
    public static final String FOX = "src/main/resources/img/fox.bmp";
    public static final String FONT = "src/main/resources/font/FreeSans.ttf";
    public static final String INTENT = "src/main/resources/color/sRGB_CS_profile.icm";

    public static final String DEST = "results/chapter07/quick_brown_fox_PDFA-1a.pdf";

    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C07E02_QuickBrownFox_PDFA_1a().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException {
        //Initialize PDFA document with output intent
        PdfADocument pdf = new PdfADocument(new PdfWriter(dest),
            PdfAConformanceLevel.PDF_A_1A,
            new PdfOutputIntent("Custom", "", "http://www.color.org",
                    "sRGB IEC61966-2.1", new FileInputStream(INTENT)));
        Document document = new Document(pdf);

        //Setting some required parameters
        pdf.setTagged();

        //Fonts need to be embedded
        PdfFont font = PdfFontFactory.createFont(FONT, PdfEncodings.WINANSI, EmbeddingStrategy.FORCE_EMBEDDED);
        Paragraph p = new Paragraph();
        p.setFont(font);
        p.add(new Text("The quick brown "));
        Image foxImage = new Image(ImageDataFactory.create(FOX));
        //Set alt text
        foxImage.getAccessibilityProperties().setAlternateDescription("Fox");
        p.add(foxImage);
        p.add(" jumps over the lazy ");
        Image dogImage = new Image(ImageDataFactory.create(DOG));
        //Set alt text
        dogImage.getAccessibilityProperties().setAlternateDescription("Dog");
        p.add(dogImage);

        document.add(p);
        document.close();
    }
}
C#
C# 
using System;
using System.IO;
using iText.IO.Font;
using iText.IO.Image;
using iText.Kernel.Font;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Element;
using iText.Pdfa;

namespace Tutorial.Chapter07 {
    public class C07E02_QuickBrownFox_PDFA_1a {
        public const String DOG = "../../../resources/img/dog.bmp";

        public const String FOX = "../../../resources/img/fox.bmp";

        public const String FONT = "../../../resources/font/FreeSans.ttf";

        public const String INTENT = "../../../resources/color/sRGB_CS_profile.icm";

        public const String DEST = "../../../results/chapter07/quick_brown_fox_PDFA-1a.pdf";

        public static void Main(String[] args) {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            new C07E02_QuickBrownFox_PDFA_1a().CreatePdf(DEST);
        }

        public virtual void CreatePdf(String dest) {
            //Initialize PDFA document with output intent
            PdfADocument pdf = new PdfADocument(new PdfWriter(dest), PdfAConformanceLevel.PDF_A_1A, new PdfOutputIntent
                ("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", new FileStream(INTENT, FileMode.Open, FileAccess.Read
                )));
            Document document = new Document(pdf);
            //Setting some required parameters
            pdf.SetTagged();
            //Fonts need to be embedded
            PdfFont font = PdfFontFactory.CreateFont(FONT, PdfEncodings.WINANSI, 
                PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
            Paragraph p = new Paragraph();
            p.SetFont(font);
            p.Add(new Text("The quick brown "));
            iText.Layout.Element.Image foxImage = new Image(ImageDataFactory.Create(FOX));
            //Set alt text
            foxImage.GetAccessibilityProperties().SetAlternateDescription("Fox");
            p.Add(foxImage);
            p.Add(" jumps over the lazy ");
            iText.Layout.Element.Image dogImage = new iText.Layout.Element.Image(ImageDataFactory.Create(DOG));
            //Set alt text
            dogImage.GetAccessibilityProperties().SetAlternateDescription("Dog");
            p.Add(dogImage);
            document.Add(p);
            document.Close();
        }
    }
}

c07e03_unitedstates_pdfa_3a

JAVA
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 tutorial.chapter07;

import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.font.PdfFontFactory.EmbeddingStrategy;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.pdf.*;
import com.itextpdf.kernel.pdf.filespec.PdfFileSpec;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.properties.HorizontalAlignment;
import com.itextpdf.layout.element.Cell;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Table;
import com.itextpdf.layout.properties.UnitValue;
import com.itextpdf.pdfa.PdfADocument;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.StringTokenizer;

public class C07E03_UnitedStates_PDFA_3a {
    public static final String DATA = "src/main/resources/data/united_states.csv";
    public static final String FONT = "src/main/resources/font/FreeSans.ttf";
    public static final String BOLD_FONT = "src/main/resources/font/FreeSansBold.ttf";
    public static final String INTENT = "src/main/resources/color/sRGB_CS_profile.icm";


    public static final String DEST = "results/chapter07/united_states_PDFA-3a.pdf";
    
    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C07E03_UnitedStates_PDFA_3a().createPdf(DEST);
    }
    
    public void createPdf(String dest) throws IOException {
        PdfADocument pdf = new PdfADocument(new PdfWriter(dest),
            PdfAConformanceLevel.PDF_A_3A,
            new PdfOutputIntent("Custom", "", "http://www.color.org",
                    "sRGB IEC61966-2.1", new FileInputStream(INTENT)));
        Document document = new Document(pdf, PageSize.A4.rotate());
        document.setMargins(20, 20, 20, 20);

        //Setting some required parameters
        pdf.setTagged();
        pdf.getCatalog().setLang(new PdfString("en-US"));
        pdf.getCatalog().setViewerPreferences(
                new PdfViewerPreferences().setDisplayDocTitle(true));
        PdfDocumentInfo info = pdf.getDocumentInfo();
        info.setTitle("iText PDF/A-3 example");

        //Add attachment
        PdfDictionary parameters = new PdfDictionary();
        parameters.put(PdfName.ModDate, new PdfDate().getPdfObject());
        PdfFileSpec fileSpec = PdfFileSpec.createEmbeddedFileSpec(
            pdf, Files.readAllBytes(Paths.get(DATA)), "united_states.csv",
            "united_states.csv", new PdfName("text/csv"), parameters,
            PdfName.Data);
        fileSpec.put(new PdfName("AFRelationship"), new PdfName("Data"));
        pdf.addFileAttachment("united_states.csv", fileSpec);
        PdfArray array = new PdfArray();
        array.add(fileSpec.getPdfObject().getIndirectReference());
        pdf.getCatalog().put(new PdfName("AF"), array);

        //Embed fonts
        PdfFont font = PdfFontFactory.createFont(FONT, EmbeddingStrategy.FORCE_EMBEDDED);
        PdfFont bold = PdfFontFactory.createFont(BOLD_FONT, EmbeddingStrategy.FORCE_EMBEDDED);

        // Create content
        Table table = new Table(UnitValue.createPercentArray(new float[]{4, 1, 3, 4, 3, 3, 3, 3, 1}))
                .useAllAvailableWidth();

        BufferedReader br = new BufferedReader(new FileReader(DATA));
        String line = br.readLine();
        process(table, line, bold, true);
        while ((line = br.readLine()) != null) {
            process(table, line, font, false);
        }
        br.close();
        document.add(table);
        
        //Close document
        document.close();
    }

    public void process(Table table, String line, PdfFont font, boolean isHeader) {
        StringTokenizer tokenizer = new StringTokenizer(line, ";");
        while (tokenizer.hasMoreTokens()) {
            if (isHeader) {
                table.addHeaderCell(new Cell().setHorizontalAlignment(HorizontalAlignment.CENTER).add(new Paragraph(tokenizer.nextToken()).setHorizontalAlignment(HorizontalAlignment.CENTER).setFont(font)));
            } else {
                table.addCell(new Cell().setHorizontalAlignment(HorizontalAlignment.CENTER).add(new Paragraph(tokenizer.nextToken()).setHorizontalAlignment(HorizontalAlignment.CENTER).setFont(font)));
            }
        }
    }
}
C#
C# 
using System;
using System.IO;
using iText.Commons.Utils;
using iText.Kernel.Font;
using iText.Kernel.Geom;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Filespec;
using iText.Layout;
using iText.Layout.Element;
using iText.Layout.Properties;
using iText.Pdfa;

namespace Tutorial.Chapter07 {
    public class C07E03_UnitedStates_PDFA_3a {
        public const String DATA = "../../../resources/data/united_states.csv";

        public const String FONT = "../../../resources/font/FreeSans.ttf";

        public const String BOLD_FONT = "../../../resources/font/FreeSansBold.ttf";

        public const String INTENT = "../../../resources/color/sRGB_CS_profile.icm";

        public const String DEST = "../../../results/chapter07/united_states_PDFA-3a.pdf";

        public static void Main(String[] args) {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            new C07E03_UnitedStates_PDFA_3a().CreatePdf(DEST);
        }

        public virtual void CreatePdf(String dest) {
            PdfADocument pdf = new PdfADocument(new PdfWriter(dest), PdfAConformanceLevel.PDF_A_3A, new PdfOutputIntent
                ("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", new FileStream(INTENT, FileMode.Open, FileAccess.Read
                )));
            Document document = new Document(pdf, PageSize.A4.Rotate());
            document.SetMargins(20, 20, 20, 20);
            //Setting some required parameters
            pdf.SetTagged();
            pdf.GetCatalog().SetLang(new PdfString("en-US"));
            pdf.GetCatalog().SetViewerPreferences(new PdfViewerPreferences().SetDisplayDocTitle(true));
            PdfDocumentInfo info = pdf.GetDocumentInfo();
            info.SetTitle("iText7 PDF/A-3 example");
            //Add attachment
            PdfDictionary parameters = new PdfDictionary();
            parameters.Put(PdfName.ModDate, new PdfDate().GetPdfObject());
            PdfFileSpec fileSpec = PdfFileSpec.CreateEmbeddedFileSpec(pdf, File.ReadAllBytes(System.IO.Path.Combine(DATA
                )), "united_states.csv", "united_states.csv", new PdfName("text/csv"), parameters, PdfName.Data);
            fileSpec.Put(new PdfName("AFRelationship"), new PdfName("Data"));
            pdf.AddFileAttachment("united_states.csv", fileSpec);
            PdfArray array = new PdfArray();
            array.Add(fileSpec.GetPdfObject().GetIndirectReference());
            pdf.GetCatalog().Put(new PdfName("AF"), array);
            //Embed fonts
            PdfFont font = PdfFontFactory.CreateFont(FONT, PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
            PdfFont bold = PdfFontFactory.CreateFont(BOLD_FONT, PdfFontFactory.EmbeddingStrategy.FORCE_EMBEDDED);
            // Create content
            Table table = new Table(UnitValue.CreatePercentArray(new float[] { 4, 1, 3, 4, 3, 3, 3, 3, 1 }))
                .UseAllAvailableWidth();
            using (StreamReader sr = File.OpenText(DATA))
            {
                String line = sr.ReadLine();
                Process(table, line, bold, true);
                while ((line = sr.ReadLine()) != null)
                {
                    Process(table, line, font, false);
                }
            }

            document.Add(table);
            //Close document
            document.Close();
        }

        public virtual void Process(Table table, String line, PdfFont font, bool isHeader) {
            StringTokenizer tokenizer = new StringTokenizer(line, ";");
            while (tokenizer.HasMoreTokens()) {
                if (isHeader) {
                    table.AddHeaderCell(new Cell().SetHorizontalAlignment(HorizontalAlignment.CENTER).Add(new Paragraph(tokenizer
                        .NextToken()).SetHorizontalAlignment(HorizontalAlignment.CENTER).SetFont(font)));
                }
                else {
                    table.AddCell(new Cell().SetHorizontalAlignment(HorizontalAlignment.CENTER).Add(new Paragraph(tokenizer.NextToken
                        ()).SetHorizontalAlignment(HorizontalAlignment.CENTER).SetFont(font)));
                }
            }
        }
    }
}

c07e04_mergepdfadocuments

JAVA
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 tutorial.chapter07;

import com.itextpdf.kernel.pdf.*;
import com.itextpdf.kernel.utils.PdfMerger;
import com.itextpdf.pdfa.PdfADocument;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class C07E04_MergePDFADocuments {
    public static final String INTENT = "src/main/resources/color/sRGB_CS_profile.icm";

    public static final String SRC1 = "src/main/resources/pdf/quick_brown_fox_PDFA-1a.pdf";
    public static final String SRC2 = "src/main/resources/pdf/united_states_PDFA-1a.pdf";
    public static final String DEST = "results/chapter07/merged_PDFA-1a_documents.pdf";

    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C07E04_MergePDFADocuments().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException {
        //Initialize PDFA document with output intent
        PdfADocument pdf = new PdfADocument(new PdfWriter(dest),
            PdfAConformanceLevel.PDF_A_1A,
            new PdfOutputIntent("Custom", "", "http://www.color.org",
                    "sRGB IEC61966-2.1", new FileInputStream(INTENT)));

        //Setting some required parameters
        pdf.setTagged();
        pdf.getCatalog().setLang(new PdfString("en-US"));
        pdf.getCatalog().setViewerPreferences(
                new PdfViewerPreferences().setDisplayDocTitle(true));
        PdfDocumentInfo info = pdf.getDocumentInfo();
        info.setTitle("iText PDF/A-1a example");

        //Create PdfMerger instance
        PdfMerger merger = new PdfMerger(pdf);
        //Add pages from the first document
        PdfDocument firstSourcePdf = new PdfDocument(new PdfReader(SRC1));
        merger.merge(firstSourcePdf, 1, firstSourcePdf.getNumberOfPages());
        //Add pages from the second pdf document
        PdfDocument secondSourcePdf = new PdfDocument(new PdfReader(SRC2));
        merger.merge(secondSourcePdf, 1, secondSourcePdf.getNumberOfPages());

        //Close the documents
        firstSourcePdf.close();
        secondSourcePdf.close();
        pdf.close();
    }
}
C#
C# 
using System;
using System.IO;
using iText.Kernel.Pdf;
using iText.Kernel.Utils;
using iText.Pdfa;

namespace Tutorial.Chapter07 {
    public class C07E04_MergePDFADocuments {
        public const String INTENT = "../../../resources/color/sRGB_CS_profile.icm";

        public const String SRC1 = "../../../resources/pdf/quick_brown_fox_PDFA-1a.pdf";

        public const String SRC2 = "../../../resources/pdf/united_states_PDFA-1a.pdf";

        public const String DEST = "../../../results/chapter07/merged_PDFA-1a_documents.pdf";

        public static void Main(String[] args) {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
            new C07E04_MergePDFADocuments().CreatePdf(DEST);
        }

        public virtual void CreatePdf(String dest) {
            //Initialize PDFA document with output intent
            PdfADocument pdf = new PdfADocument(new PdfWriter(dest), PdfAConformanceLevel.PDF_A_1A, new PdfOutputIntent
                ("Custom", "", "http://www.color.org", "sRGB IEC61966-2.1", new FileStream(INTENT, FileMode.Open, FileAccess.Read
                )));
            //Setting some required parameters
            pdf.SetTagged();
            pdf.GetCatalog().SetLang(new PdfString("en-US"));
            pdf.GetCatalog().SetViewerPreferences(new PdfViewerPreferences().SetDisplayDocTitle(true));
            PdfDocumentInfo info = pdf.GetDocumentInfo();
            info.SetTitle("iText7 PDF/A-1a example");
            //Create PdfMerger instance
            PdfMerger merger = new PdfMerger(pdf);
            //Add pages from the first document
            PdfDocument firstSourcePdf = new PdfDocument(new PdfReader(SRC1));
            merger.Merge(firstSourcePdf, 1, firstSourcePdf.GetNumberOfPages());
            //Add pages from the second pdf document
            PdfDocument secondSourcePdf = new PdfDocument(new PdfReader(SRC2));
            merger.Merge(secondSourcePdf, 1, secondSourcePdf.GetNumberOfPages());
            //Close the documents
            firstSourcePdf.Close();
            secondSourcePdf.Close();
            pdf.Close();
        }
    }
}

Resources

dog.bmp
fox.bmp
FreeSans.ttf
sRGB_CS_profile.icm
united_states.csv
FreeSansBold.ttf
quick_brown_fox_PDFA-1a.pdf
united_states_PDFA-1a.pdf

Results

cmp_quick_brown_fox_PDFUA.pdf

cmp_quick_brown_fox_PDFA-1b.pdf

cmp_quick_brown_fox_PDFA-1a.pdf

cmp_united_states_PDFA-3a.pdf

cmp_merged_PDFA-1a_documents.pdf

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