private void watermark_Click(object sender, EventArgs e)
{
using (Image watermarkImage = Image.FromFile(@"C:\Users\User\Desktop\14829270527610.png"))
using (Graphics imageGraphics = Graphics.FromImage(image))
using (Brush watermarkBrush = new TextureBrush(watermarkImage))
{
int x = (image.Width - watermarkImage.Width) / 2;
int y = (image.Height - watermarkImage.Height) / 2;
imageGraphics.FillRectangle(watermarkBrush, new Rectangle(new Point(x, y), watermarkImage.Size));
image.Save(@"C:\Users\Public\Pictures\Sample Pictures\Desert_watermark.jpg");
Что тут не так?