Tag Archives: watermark

Add a watermark to all of the files in a directory in C#

I recently wanted to make a slide show where each picture displayed a logo or watermark. File Explorer can easily play a slide show. Simply follow these steps: Browse to the folder containing the images. Click one of the image … Continue reading

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Draw a watermark in C#

The example Use a ColorMatrix to add a watermark to an image in C# shows one way to add a watermark to an image. This example shows another technique that is efficient and easy to understand. It also lets you … Continue reading

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Use a ColorMatrix to add a watermark to an image in C#

The example Add a watermark to an image in C# explains how to add a translucent watermark to an image. This example does the same thing in a slightly different and probably more efficient way. The example uses the following … Continue reading

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Add a watermark to an image in C#

The following DrawWatermark method copies a watermark image onto an image. // Copy the watermark image over the result image. private void DrawWatermark(Bitmap watermark_bm, Bitmap result_bm, int x, int y) { const byte ALPHA = 128; // Set the watermark’s … Continue reading

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