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2015-10-03

How to create round-rect borders in PDF

Introduction


You can create cool visual effects using the flow layout API provided by Apitron PDF Kit. One of such effects is the support border-radius property offered by content elements. This property can be used to create round-rect borders for text, images and even annotation objects.

Code sample


static void Main(string[] args)
{
    // create document and its resource manager
    ResourceManager manager = new ResourceManager();
    FlowDocument doc = new FlowDocument(){Margin = new Thickness(10)};

    // add new text block with roudn-rect border
    doc.Add(new TextBlock("The text with round-rect border")
            {
                BorderRadius = 5,
                Border = new Border(10),
                BorderColor = RgbColors.Red,
                Padding = new Thickness(5)
            });

    // save file
    using (Stream stream = File.Create("round-rect.pdf"))
    {
        doc.Write(stream, manager);
    }
}


Resulting image is shown below:

Pic. 1 Text block with round-rect border

Pic. 1 Text block with round-rect border

Conclusion


Flow layout API offered by the Apitron PDF Kit .NET component can be used to quickly design and generate PDF documents in a way similar to HTML/CSS approach. It works on multiple platforms including Windows Phone, Xamarin, MONO. Create mobile, web and desktop PDF processing apps using this new generation of PDF creation tools.

Downloadable version of this article can be found by the following link [PDF].

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