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Sometimes, to study the system better, you want to dive into the code as fast as possible. To make this easier, GroupDocs.Comparison provides different purchase plans or offers a Free Trial and a 30-day Temporary License for evaluation.

Note

Note that there are several general policies and practices that guide you on how to evaluate, properly license, and purchase our products. You can find them in the “Purchase Policies and FAQ” section.

You can try GroupDocs.Comparison without buying a license.

The evaluation version is the same as the purchased one – the evaluation version simply becomes licensed when you set the license. You can set the license in several ways that are described in the next sections of this article.

The evaluation version comes with the following limitations:

• Only the first 2 pages can be processed.
• Trial badges are placed in the document on the top of each page.

If you wish to test GroupDocs.Comparison without the limitations of the trial version, you can also request a 30-day Temporary License. For details, see the “Get a Temporary License” page.

Note

You can find the pricing information on the “Pricing Information” page.

After getting the license, you need to set it. This section describes different ways to set the license.

The license should be set:

• Only once per application domain.
• Before using any other GroupDocs.Comparison classes.

Note

The license can be set multiple times per application domain, but we recommend doing it once since all the subsequent calls to the setLicense method except for the first one will just waste processor time.

The following code snippet shows how to set a license from a file:

'use strict';

// Load the GroupDocs Comparison SDK for Node.js
const groupdocs = require('@groupdocs/groupdocs.comparison');

// Path to the license file
const licensePath = 'GroupDocs.Comparison.lic';

// Create a License object and set the license
const license = new groupdocs.License();
license.setLicense(licensePath);

// Terminate the process with a success exit code
process.exit(0);

The following code snippet shows how to set a license from a stream:

'use strict';

// Load the GroupDocs Comparison SDK for Node.js
const groupdocs = require('@groupdocs/groupdocs.comparison');
const java = require('java');

// Create a reference to Java's FileInputStream class
let InputStream = java.import('java.io.FileInputStream');

// Path to the license file
const licensePath = 'GroupDocs.Comparison.lic';

// Initialize a FileInputStream for the license file
const stream = new InputStream(licensePath);

// Create a License object and set the license using the InputStream
const license = new groupdocs.License();
license.setLicense(stream);

// Terminate the process with a success exit code
process.exit(0);