Installing in a new project

Create a new folder that will contain all the files for your new PHP project. Open a command shell in this folder (the root of your PHP project) and run the command below. A "vendor" folder will be created with all the project's dependencies/libraries. This folder will also contain the "autoload.php" file to include in your PHP project. (This is an autoloader that will allow you to use the PDFReport library without having to write any include lines. The classes will be loaded automatically before they are used.)
Two more files (composer.json, composer.lock) will also be created automatically in the root folder. The composer.json file will contain the configuration for the library loaded in the project. To upgrade to the latest version in the future, use the "composer install" command.

composer require alienproject/pdfreport

Installing into an existing project

In the root folder of your existing PHP project, check if the composer.json file exists. If so, open it with a text editor or your development environment (e.g., Visual Studio Code or PHPStorm). If the file doesn't exist, you can use the command described above (the one used for new projects). Make sure the file contains the following configuration lines:

{
    "require": {
        "alienproject/pdfreport": "*"
    }
}

Open a command shell and run the following command in the root of your PHP project, where the composer.json file is located. This command opens the composer.json file and installs or updates all libraries/packages/dependencies as specified in its configuration. In the case of the PDFReport library, the latest one published on https://packagist.org/ will be installed.

composer install