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Add Text Watermark to PPTX Using C#. For more information, please follow link: https://kb.groupdocs.com/watermark/net/add-text-watermark-to-pptx-using-csharp/
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using GroupDocs.Watermark.Common; | |
using GroupDocs.Watermark.Watermarks; | |
using GroupDocs.Watermark; | |
namespace AddTextWatermarktoPPTXUsingCSharp | |
{ | |
internal class Program | |
{ | |
static void Main(string[] args) | |
{ | |
// Set License to avoid the limitations of Watermark library | |
License lic = new License(); | |
lic.SetLicense(@"GroupDocs.Watermark.lic"); | |
// Specify an absolute or relative path to your PPTX | |
using (Watermarker watermarker = new Watermarker("input.pptx")) | |
{ | |
// Specify the desired text and font for the watermark | |
TextWatermark watermark = new TextWatermark("Watermark Text", | |
new Font("Arial", 60, FontStyle.Bold)); | |
// Specify font color and text opacity, rotation and alignments | |
watermark.ForegroundColor = Color.DarkGreen; | |
watermark.Opacity = 0.5; | |
watermark.HorizontalAlignment = HorizontalAlignment.Center; | |
watermark.VerticalAlignment = VerticalAlignment.Center; | |
watermark.RotateAngle = -45; | |
// Apply the watermark | |
watermarker.Add(watermark); | |
// Save the resulting PPTX | |
watermarker.Save("output.pptx"); | |
} | |
} | |
} | |
} |
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