Can Selenium verify text inside a PDF loaded by the browser? - firefox

Question

My web application loads a pdf in the browser. I have figured out how to check that the pdf has loaded correctly using:
verifyAttribute
xpath=//embed/#src
{URL of PDF goes here}
It would be really nice to be able to check the contents of the pdf with Selenium - for example verify that some text is present. Is there any way to do this?

Answer 1

While not natively supported, I have found a couple ways using the java driver. One way is to have the pdf open in your browser (having adobe acrobat installed) and then use keyboard shortcut keys to select all text (CTRL+A), then copy it to the clipboard (CTRL+C) and then you can verify the text in the clipboard. eg:
protected String getLastWindow() {
return session().getEval("var windowId; for(var x in selenium.browserbot.openedWindows ){windowId=x;} ");
}
#Test
public void testTextInPDF() {
session().click("link=View PDF");
String popupName = getLastWindow();
session().waitForPopUp(popupName, PAGE_LOAD_TIMEOUT);
session().selectWindow(popupName);
session().windowMaximize();
session().windowFocus();
Thread.sleep(3000);
session().keyDownNative("17"); // Stands for CTRL key
session().keyPressNative("65"); // Stands for A "ascii code for A"
session().keyUpNative("17"); //Releases CTRL key
Thread.sleep(1000);
session().keyDownNative("17"); // Stands for CTRL key
session().keyPressNative("67"); // Stands for C "ascii code for C"
session().keyUpNative("17"); //Releases CTRL key
TextTransfer textTransfer = new TextTransfer();
assertTrue(textTransfer.getClipboardContents().contains("Some text in my pdf"));
}
Another way, still in java, is to download the pdf and then convert the pdf to text with PDFBox, see http://www.prasannatech.net/2009/01/convert-pdf-text-parser-java-api-pdfbox.html for an example on how to do this.

Answer 2

You cannot do this using WebDriver natively. However, PDFBox API can be used here to read content of PDF file. You will have to first of all shift a focus to browser window where PDF file is opened. You can then parse all the content of PDF file and search for the desired text string.
Here is a code to use PDFBox API to search within PDF document.

Answer 3

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.PrintWriter;
import org.pdfbox.cos.COSDocument;
import org.pdfbox.pdfparser.PDFParser;
import org.pdfbox.pdmodel.PDDocument;
import org.pdfbox.util.PDFTextStripper;
public class pdfToTextConverter {
public static void pdfToText(String path_to_PDF_file, String Path_to_output_text_file) throws FileNotFoundException, IOException{
//Parse text from a PDF into a string variable
File f = new File("path_to_PDF_file");
PDFParser parser = new PDFParser(new FileInputStream(f));
parser.parse();
COSDocument cosDoc = parser.getDocument();
PDDocument pdDoc = new PDDocument(cosDoc);
PDFTextStripper pdfStripper = new PDFTextStripper();
String parsedText = pdfStripper.getText(pdDoc);
System.out.println(parsedText);
//Write parsed text into a file
PrintWriter pw = new PrintWriter("Path_to_output_text_file");
pw.print(parsedText);
pw.close();
}
}
JAR Source
http://sourceforge.net/projects/pdfbox/files/latest/download?source=files

Answer 4

Unfortunately you can not do this at all with Selenium

Answer 5

There is a way.
Before you click the link you can obtain the href value
element.FindElement(By.TagName("href")).Text
Then after the PDF loads you can get the Url
driver.GetUrl();
Then you can just check to see if the url contains the href.
It's not the best, but it's better than nothing.