Highlighting text
highlightbyaddingcontent
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 com.itextpdf.samples.sandbox.stamper;
import com.itextpdf.kernel.colors.ColorConstants;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import java.io.File;
public class HighLightByAddingContent {
public static final String DEST = "./target/sandbox/stamper/high_light_by_adding_content.pdf";
public static final String SRC = "./src/main/resources/pdfs/hello.pdf";
public static void main(String[] args) throws Exception {
File file = new File(DEST);
file.getParentFile().mkdirs();
new HighLightByAddingContent().manipulatePdf(DEST);
}
protected void manipulatePdf(String dest) throws Exception {
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
// The content, placed on a content stream before, will be rendered before the other content
// and, therefore, could be understood as a background (bottom "layer")
PdfCanvas canvas = new PdfCanvas(pdfDoc.getFirstPage().newContentStreamBefore(),
pdfDoc.getFirstPage().getResources(), pdfDoc);
canvas
.saveState()
.setFillColor(ColorConstants.YELLOW)
.rectangle(36, 786, 66, 16)
.fill()
.restoreState();
pdfDoc.close();
}
}
C#
C#
using System;
using System.IO;
using iText.Kernel.Colors;
using iText.Kernel.Pdf;
using iText.Kernel.Pdf.Canvas;
namespace iText.Samples.Sandbox.Stamper
{
public class HighLightByAddingContent
{
public static readonly String DEST = "results/sandbox/stamper/high_light_by_adding_content.pdf";
public static readonly String SRC = "../../../resources/pdfs/hello.pdf";
public static void Main(String[] args)
{
FileInfo file = new FileInfo(DEST);
file.Directory.Create();
new HighLightByAddingContent().ManipulatePdf(DEST);
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
// The content, placed on a content stream before, will be rendered before the other content
// and, therefore, could be understood as a background (bottom "layer")
PdfCanvas canvas = new PdfCanvas(pdfDoc.GetFirstPage().NewContentStreamBefore(),
pdfDoc.GetFirstPage().GetResources(), pdfDoc);
canvas
.SaveState()
.SetFillColor(ColorConstants.YELLOW)
.Rectangle(36, 786, 66, 16).Fill()
.RestoreState();
pdfDoc.Close();
}
}
}