Tuesday, February 28, 2023

Fetch Text from Image & PDF Using Selenium Java

In this blog, we will learn how we can fetch data from images and PDFs.

This Blog Contains:

  • Read Text From Image Using OCR with Tesseract (tess4j)
  • Reading PDF Text Using PDFUtil
  • Save PDF as Image Using PDFUtil
  • Extract Images From PDF Using PDFUtil

Fetch Text From Image In Selenium

To get a text from the Image in selenium, we use Optical Character Recognition (OCR) with Tesseract (tess4j). Tesseract Supports UTF-8 Unicode.

  • First, we need to create a folder with the name “tesseract” in our project and put trained data in that folder. You can find trained data for any language from the below URL:

https://github.com/tesseract-ocr/tessdata

Just Download eng. trained data for English Language and put it into Tesseract Folder for your project.

  • Add below is maven dependency for tesseract (tess4j):
<dependency>
<groupId>net.sourceforge.tess4j</groupId>
<artifactId>tess4j</artifactId>
<version>4.5.4</version>
</dependency>
  • Below is the Java code to fetch text from the image:
ITesseract image = new Tesseract();
image.setDatapath(“Location for TessData Folder”);
image.setLanguage(“eng”);
String str1 = image.doOCR(new File(“Location Of Image”));

Read Also:- Process Java Script Executor in Selenium Test Automation

Fetch Text From PDF

  • Add Below Maven Dependency For PDFUtil
<dependency>
<groupId>com.testautomationguru.pdfutil</groupId>
<artifactId>pdf-util</artifactId>
<version>0.0.3</version>
</dependency>
  • Below Java Code is used to Read Text From PDF
String pdfLocation = “Location where we have PDF File”;
PDFUtil pdfUtil = new PDFUtil();
String text = pdfUtil.getText(pdfLocation);
  • Below Java Code is used to Save PDF as an Image
String folderLocation = “Location Where we need to save Image”;
String pdfLocation = “Location where we have PDF File”;
PDFUtil pdfUtil = new PDFUtil();
pdfUtil.setImageDestinationPath(folderLocation);
pdfUtil.savePdfAsImage(pdfLocation);
  • Below Java Code is used to Fetch Image From PDF
String folderLocation = “Location Where we need to save Image”;
String pdfLocation = “ Location where we have PDF File”;
PDFUtil pdfUtil = new PDFUtil();
pdfUtil.setImageDestinationPath(folderLocation);
pdfUtil.extractImages(pdfLocation);

 Original Source:-https://www.devstringx.com/using-selenium-java

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