This example shows how to add custom font to the resource. First, load and add a font to resources:

...

	var report = new StiReport();

	// Loading and adding a font to resources
	var fileContent = System.IO.File.ReadAllBytes("Fonts/Roboto-Black.ttf");
	var resource = new StiResource("Roboto-Black", "Roboto-Black", false, StiResourceType.FontTtf, fileContent, false);
	report.Dictionary.Resources.Add(resource);

...

Next, add a font from resources to the font collection:

...

	// Adding a font from resources to the font collection
	StiFontCollection.AddResourceFont(resource.Name, resource.Content, "ttf", resource.Alias);

...

Finally, create a text component:

...

	// Creating a text component
	var dataText = new StiText();
	dataText.ClientRectangle = new RectangleD(1, 1, 3, 2);
	dataText.Text = "Sample Text";
	dataText.Font = StiFontCollection.CreateFont("Roboto-Black", 12, System.Drawing.FontStyle.Regular);
	dataText.Border.Side = StiBorderSides.All;

	report.Pages[0].Components.Add(dataText);

	return report;
	
...

In the screenshot below you can see the result of the sample code: