将PDF转换为字节

Question

我有一个WCF服务，它存储用户上传到文件服务器的文件（PDF文件）。现在，我想将这些PDF文件转换为字节，以便iOS客户端可以在iPad上下载它们。不希望将PDF存储为SQL中的BLOB，只需将其转换为字节并将它们发送到iPad即可。任何链接/示例代码来实现这一点非常感谢。

Answer 1

你可以简单地阅读PDF文件转换成字节数组：

Answer 2

，你可以像下面：问题的

public byte[] ReadPDF(string filePath) 
     { 
      byte[] buffer; 
      FileStream fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read); 
      try 
      { 
       int length = (int)fileStream.Length; // get file length 
       buffer = new byte[length];   // create buffer 
       int count;       // actual number of bytes read 
       int sum = 0;       // total number of bytes read 

       // read until Read method returns 0 (end of the stream has been reached) 
       while ((count = fileStream.Read(buffer, sum, length - sum)) > 0) 
        sum += count; // sum is a buffer offset for next reading 
      } 
      finally 
      { 
       fileStream.Close(); 
      } 
      return buffer; 
     }