convert base64Binary to pdf

Question

I have raw data of base64Binary.

string base64BinaryStr = "J9JbWFnZ......"

How can I make pdf file? I know it need some conversion. Please help me.

Answer 1

All you need to do is run it through any Base64 decoder which will take your data as a string and pass back an array of bytes. Then, simply write that file out with pdf in the file name. Or, if you are streaming this back to a browser, simple write the bytes to the output stream, marking the appropriate mime-type in the headers.

Most languages either have built in methods for converted to/from Base64. Or a simple Google with your specific language will return numerous implementations you can use. The process of going back and forth to Base64 is pretty straightforward and can be implemented by even novice developers.

Answer 2

Step 1 is converting from your base64 string to a byte array:

byte[] bytes = Convert.FromBase64String(base64BinaryStr);

Step 2 is saving the byte array to disk:

System.IO.FileStream stream = 
    new FileStream(@"C:\file.pdf", FileMode.CreateNew);
System.IO.BinaryWriter writer = 
    new BinaryWriter(stream);
writer.Write(bytes, 0, bytes.Length);
writer.Close();

Answer 3

Use System.Convert.FromBase64String

        using (var f= System.IO.File.Create("c:\\file.pdf") )
        {
            var b = Convert.FromBase64String(base64BinaryStr);
            f.Write(b,0,b.Length);
        }

Answer 4

EUREKA !!!

base64BinaryStr - from WEB SERVICE SOAP message

byte[] bytes = Convert.FromBase64String(base64BinaryStr);

EUREKA !!!