Two pdf file comparison and storing result in img file

My code is:

import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint
import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase
import static com.kms.katalon.core.testdata.TestDataFactory.findTestData
import static com.kms.katalon.core.testobject.ObjectRepository.findTestObject
import static com.kms.katalon.core.testobject.ObjectRepository.findWindowsObject
import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint
import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW
import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile
import com.kms.katalon.core.model.FailureHandling as FailureHandling
import com.kms.katalon.core.testcase.TestCase as TestCase
import com.kms.katalon.core.testdata.TestData as TestData
import com.kms.katalon.core.testng.keyword.TestNGBuiltinKeywords as TestNGKW
import com.kms.katalon.core.testobject.TestObject as TestObject
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import com.kms.katalon.core.windows.keyword.WindowsBuiltinKeywords as Windows
import internal.GlobalVariable as GlobalVariable
import org.openqa.selenium.Keys as Keys

import com.kms.katalon.core.util.KeywordUtil as KeywordUtil
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI
import com.kms.katalon.core.mobile.keyword.MobileBuiltInKeywords as Mobile
import com.kms.katalon.core.cucumber.keyword.CucumberBuiltinKeywords as CucumberKW
import com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords as WS

import static com.kms.katalon.core.testdata.TestDataFactory.findTestData
import static com.kms.katalon.core.testcase.TestCaseFactory.findTestCase
import static com.kms.katalon.core.checkpoint.CheckpointFactory.findCheckpoint

import com.kms.katalon.core.checkpoint.Checkpoint as Checkpoint

import com.kms.katalon.core.configuration.RunConfiguration as RunConfiguration

String path = RunConfiguration.getProjectDir() + ‘/Data Files/’

CustomKeywords.‘com.kms.katalon.keyword.pdf.PDF.compareByPixel’(path + ‘B1.pdf’, path + ‘B3.pdf’, -1, -1, true, false)

Output :

we are not getting error while compiling, Result also not reflecting as output in a image file as marked in yellow mark in the screen shot but file not reflecting in the system.
Could you please suggest how to get the result in the folder.

I looked at the source code of the keyword class:

As far as I understand from the source, the compareByPixel() just returns a boolean value; it does not create any file as output.

Possibly you want to use some other method. Which one ? — I don’t know.