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Selenium Java Pdf

by pilmocomparata 2021. 5. 21.

A complete example

Pdf

For those who are willing to learn by examples right away, here is a complete example of how to save PDF files automatically in Firefox using Selenium WebDriver.

Since we are following this tutorial in Java, we will be downloading Selenium Webdriver library in Java. How to Download Selenium Webdriver for Java? Selenium WebDriver supports many languages and each language has its own client driver. Here we are configuring Selenium 4 with java so we need ‘webdriver Java client driver‘. Learning Selenium Testing Tools - Third Edition (2015) by Raghavendra Prasad MG: Selenium WebDriver Recipes in Java: The problem solving guide to Selenium WebDriver in Java (Web Test Automation Recipes Series) (Volume 3) (2015) by Zhimin Zhan: Test Automation using Selenium WebDriver with Java: Step by Step Guide (2014) by Mr Navneesh Garg. Selenium Tutorial in PDF - This wonderful tutorial and its PDF is available free of cost. However you can help us serve more readers by making a small contribution.

I am working on web page over which there is a link, clicking on which it opens a pdf file on new window. I have to read that pdf file to validate some data against the transactions done. You Can Make This Happen and 'The Selenium Guidebook' will teach you how. Write tests that you and your team can trust with the techniques in 'The Selenium Guidebook'. With them you will be able to release software with confidence, knowing that your application has stable, fast, and working tests that cover everything that matters. Who This Is For. Selenium Webdriver with Java (Basics + Advance + Architect) 4.3 (1,128 ratings) Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.

A walk-through

Prevent Firefox from popping up 'Save file' dialog

As Selenium itself doesn't interact with system-level dialogs, in order to download PDFs as part of the browser automation process, it requires the help from either additional frameworks or an approach that handles downloading automatically.

Firefox's download manager preferences are controlled by some properties defined in about:config page, which can be set programmatically while instantiating FirefoxDriver using Selenium WebDriver.

  • browser.download.folderList controls the default folder to download a file to. 0 indicates the Desktop; 1 indicates the systems default downloads location; 2 indicates a custom folder.
  • browser.download.dir holds the custom destination folder for downloading. It is activated if browser.download.folderList has been set to 2.
  • browser.helperApps.neverAsk.saveToDisk stores a comma-separated list of MIME types to save to disk without asking what to use to open the file.

Selenium Java Read Pdf File

It is worth noting that the MIME type defined here is application/pdf, which is a type that most PDF files use. However, if the target PDF file has a non-standard MIME type, then 'Save file' dialog might still show up. In order to fix this issue, the actual MIME type has to be added into browser.helperApps.neverAsk.saveToDisk property, which can be checked out using either of the following approaches:

  • Upload file to online tools like What MIME?
  • Download file and monitor MIME type in Chrome's developer tool or web debugging proxy like Fiddler, Charles, etc.

Prevent Firefox from previewing PDFs

For built-in PDF.js viewer

Java 4 Selenium Webdriver Pdf

With the release of Firefox 19.0, PDF.js has been integrated into Firefox to provide built-in ability of displaying PDF files inside browser. It tries to parse and render PDFs into HTML5, which can be automated using Selenium WebDriver in theory. However, to download PDFs instead of preview in Firefox, another about:config entry needs to be changed to disable PDF.js.

For third party PDF viewers

Except for Firefox's built-in PDF viewer, there might be other third party plugins preventing Firefox from downloading PDFs automatically. If a machine has Adobe Reader installed, then default PDF viewing setting in Firefox might have been set to Adobe Acrobat without notice.

To avoid previewing PDFs with those plugins, two more about:config entries need to be configured when starting WebDriver instance.

  • plugin.scan.plid.all needs to be false, so that Firefox won't scan and load plugins.
  • plugin.scan.Acrobat is a key that holds the minimum allowed version number that Adobe Acrobat is allowed to launch. Setting it to a number larger than currently installed Adobe Acrobat version should do the trick.

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