获取图像的文件大小

Question

I search to get the file size (in bytes) of an image in C# :

I get the image in a base64 string, but in this format I have the impression it's no possible to get the file size.

So I transforme it in an image object like this :

// Convert Base64 String to byte[]
byte[] imageBytes = Convert.FromBase64String(imageSrc);
MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);

// Convert byte[] to Image
ms.Write(imageBytes, 0, imageBytes.Length);
Image imageObj = Image.FromStream(ms, true);

But i'm not able to get the file size. I can have the dimensions or the type but not the file size.

Have you got an idea on that please?

Answer 1

You already have the size of your image in bytes, you can get it like this:

imageBytes.Length

As I understood, you don't want to convert it to another format, just save it, so you can save your bytes directly to your file, the simplest solution:

File.WriteAllBytes(string yourpath, byte[] yourbytes)