Licensing

Aspose.OCR for JavaScript via C++ is a commercially licensed product that can be used in trial (evaluation) mode.

Free trial

You can start using Aspose.OCR for JavaScript via C++ right after the installation. In evaluation mode (without providing a license) you can recognize texts in any supported languages and save recognition results in any of the supported formats.

However, if you do not provide the license, only the first 300 characters from the image are recognized.

Apply a license to remove the restriction.

Getting a temporary license

A temporary license removes a limitation of the trial version for 30 days. Use it to start building a fully functional OCR application and make the final decision to purchase Aspose.OCR for JavaScript via C++ later.

To request a temporary license, visit “Get a Temporary License” page.

Purchasing a license

Aspose.OCR for JavaScript via C++ is licensed by the number of developers and locations (sites) where the products will be used (Developer and Site licenses).

Read License Types for details and purchase a license that best suits your needs.

Applying a license

After purchasing a license or obtaining a temporary license, you will receive a file with .lic extension. If needed, you can rename this file and change its extension.

Do not modify the contents of the license file. Even an extra line break or space will invalidate the license.

The license must be applied only once, before recognition starts. You can load the license from a file, Base64 encoded string, or request a user to provide it.

Method	Usage
Module.AsposeOCRSetLicenseFromData()	Load a license from an array of bytes (ArrayBuffer object).
Module.AsposeOCRGetState()	Checks the current licensing status: true - licensed false - unlicensed

Examples

Load license from file

var Module = {
	onRuntimeInitialized: function()
	{
		// Place the license file in the same directory as a web page
		fetch("./Aspose.OCR.lic").then(bytes => bytes.arrayBuffer()).then(licenseData => {
			// Load license
			Module.AsposeOCRSetLicenseFromData(licenseData);
			// Check license status
			if(Module.AsposeOCRGetState()) console.log("Licensed");
			else console.log("Unlicensed");
		});
	}
};

Load license from Base64 code

var Module = {
	onRuntimeInitialized: function()
	{
		// Base64 encoded license file
		const license = "data:application/octet-stream;base64,PD94bWwgdm...TGljZW5zZT4=";
		fetch(license).then(bytes => bytes.arrayBuffer()).then(licenseData => {
			// Load license
			Module.AsposeOCRSetLicenseFromData(licenseData);
			// Check license status
			if(Module.AsposeOCRGetState()) console.log("Licensed");
			else console.log("Unlicensed");
		});
	}
};

Get license from user

var Module = {
	onRuntimeInitialized: function()
	{
		// Get the license from input field
		const licenseInput = document.getElementById("license-file");
		licenseInput.addEventListener("change", applyLicense);

		function applyLicense(event)
		{
			// Read the license file contents
			const files = event.target.files;
			const licenseFile = files[0];
			const reader = new FileReader();
			reader.readAsArrayBuffer(licenseFile);
			// Apply the license
			reader.onload = function(e) {
				const fileData = new Uint8Array(e.target.result);
				// Load license
				Module.AsposeOCRSetLicenseFromData(fileData);
				// Check license status
				if(Module.AsposeOCRGetState()) console.log("Licensed");
				else console.log("Unlicensed");
			};
		}
	}
};