Exception : "A Graphics object cannot be created from an image that has an indexed pixel format". this exception happed in my application while trying to draw string on a .gif image, I read about this problem and found in MSDN that: If the image has an indexed pixel format, this method throws...

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I wanted to make a small image resize function in my asp.net website, and everything worked fine, but i faced a problem resizing transparent .png and .gif images. After resizing done, i find that the output resized images transparent parts become white color and not transparent anymore. This was my code...

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