A: Use the Files app or PDF Expert. Pair with a code editor like Working Copy (to edit plugin files via SFTP) and keep the PDF in split view.
You do not "install Yannick Lefebvre’s WordPress Plugin Development Cookbook PDF." You acquire the PDF legally (from Packt or Amazon), open it as a document, and then install the individual plugins you build from its recipes.
For a smooth experience:
By separating the document (PDF) from the action (plugin installation), you’ll avoid confusion and master WordPress development one recipe at a time.
Add this to your wp-config.php before testing recipes: A: Use the Files app or PDF Expert
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
Then check /wp-content/debug.log to see PHP errors as you tweak the code.
First, a critical distinction: You do not "install" a PDF like software. You acquire and open it. Lefebvre’s cookbook is published by Packt Publishing. By separating the document (PDF) from the action
Why the edition matters: The 1st edition covers WordPress 3.x. The 3rd edition covers the Block Editor (Gutenberg) and modern REST API. Installing outdated code will break a contemporary WordPress site.