Cell borders (without cell or table events)

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.tables;

import com.itextpdf.kernel.colors.ColorConstants;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.borders.SolidBorder;
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 java.io.File;

public class ColoredBorder {
    public static final String DEST = "./target/sandbox/tables/colored_border.pdf";

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

        new ColoredBorder().manipulatePdf(DEST);
    }

    protected void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
        Document doc = new Document(pdfDoc);

        Table table = new Table(UnitValue.createPercentArray(2)).useAllAvailableWidth();

        Cell cell = new Cell().add(new Paragraph("Cell 1"));
        cell.setBorderTop(new SolidBorder(ColorConstants.RED, 1));
        cell.setBorderBottom(new SolidBorder(ColorConstants.BLUE, 1));
        table.addCell(cell);

        cell = new Cell().add(new Paragraph("Cell 2"));
        cell.setBorderLeft(new SolidBorder(ColorConstants.GREEN, 5));
        cell.setBorderTop(new SolidBorder(ColorConstants.YELLOW, 8));
        table.addCell(cell);

        cell = new Cell().add(new Paragraph("Cell 3"));
        cell.setBorderLeft(new SolidBorder(ColorConstants.RED, 1));
        cell.setBorderBottom(new SolidBorder(ColorConstants.BLUE, 1));
        table.addCell(cell);

        cell = new Cell().add(new Paragraph("Cell 4"));
        cell.setBorderLeft(new SolidBorder(ColorConstants.GREEN, 5));
        cell.setBorderTop(new SolidBorder(ColorConstants.YELLOW, 8));
        table.addCell(cell);

        doc.add(table);

        doc.close();
    }
}

C#

using System;
using System.IO;
using iText.Kernel.Colors;
using iText.Kernel.Pdf;
using iText.Layout;
using iText.Layout.Borders;
using iText.Layout.Element;
using iText.Layout.Properties;

namespace iText.Samples.Sandbox.Tables
{
    public class ColoredBorder
    {
        public static readonly string DEST = "results/sandbox/tables/colored_border.pdf";

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

            new ColoredBorder().ManipulatePdf(DEST);
        }

        private void ManipulatePdf(string dest)
        {
            PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
            Document doc = new Document(pdfDoc);
            
            Table table = new Table(UnitValue.CreatePercentArray(2)).UseAllAvailableWidth();
            
            Cell cell = new Cell().Add(new Paragraph("Cell 1"));
            cell.SetBorderTop(new SolidBorder(ColorConstants.RED, 1));
            cell.SetBorderBottom(new SolidBorder(ColorConstants.BLUE, 1));
            table.AddCell(cell);

            cell = new Cell().Add(new Paragraph("Cell 2"));
            cell.SetBorderLeft(new SolidBorder(ColorConstants.GREEN, 5));
            cell.SetBorderTop(new SolidBorder(ColorConstants.YELLOW, 8));
            table.AddCell(cell);

            cell = new Cell().Add(new Paragraph("Cell 3"));
            cell.SetBorderLeft(new SolidBorder(ColorConstants.RED, 1));
            cell.SetBorderBottom(new SolidBorder(ColorConstants.BLUE, 1));
            table.AddCell(cell);

            cell = new Cell().Add(new Paragraph("Cell 4"));
            cell.SetBorderLeft(new SolidBorder(ColorConstants.GREEN, 5));
            cell.SetBorderTop(new SolidBorder(ColorConstants.YELLOW, 8));
            table.AddCell(cell);

            doc.Add(table);

            doc.Close();
        }
    }
}