Flattening a form

31st May 2016
admin-marketing

Examples written in answer to questions such as:

CheckBoxFlatten.java
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/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2019 iText Group NV
    Authors: iText Software.
 
    For more information, please contact iText Software at this address:
    sales@itextpdf.com
 */
/**
 * Example written by Bruno Lowagie in answer to:
 * http://stackoverflow.com/questions/34439850
 */
package com.itextpdf.samples.sandbox.acroforms;
 
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.forms.PdfAcroForm;
 
import java.io.File;
 
public class CheckBoxFlatten {
    public static final String DEST
            = "./target/sandbox/acroforms/checkbox_flatten.pdf";
    public static final String SRC
            = "./src/test/resources/pdfs/checkboxes.pdf";
 
    public static void main(String[] args) throws Exception {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new CheckBoxFlatten().manipulatePdf(DEST);
    }
 
    protected void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(DEST));
        PdfAcroForm.getAcroForm(pdfDoc, true).flattenFields();
        pdfDoc.close();
    }
}
CheckBoxFlatten.cs
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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2019 iText Group NV
Authors: iText Software.
 
For more information, please contact iText Software at this address:
sales@itextpdf.com
*/
 
using System;
using System.IO;
using iText.Forms;
using iText.Kernel.Pdf;
 
namespace iText.Samples.Sandbox.Acroforms
{
    public class CheckBoxFlatten
    {
        public static readonly String DEST = "../../results/sandbox/acroforms/checkbox_flatten.pdf";
 
        public static readonly String SRC = "../../resources/pdfs/checkboxes.pdf";
 
        public static void Main(String[] args)
        {
            FileInfo file = new FileInfo(DEST);
            file.Directory.Create();
 
            new CheckBoxFlatten().ManipulatePdf(DEST);
        }
 
        protected void ManipulatePdf(String dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
            PdfAcroForm form = PdfAcroForm.GetAcroForm(pdfDoc, true);
 
            // If no fields have been explicitly included, then all fields are flattened.
            // Otherwise only the included fields are flattened.
            form.FlattenFields();
 
            pdfDoc.Close();
        }
    }
}

Click the following link to see the legacy example for iText 5. Except for security fixes, iText 5 is no longer being developed.



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