diff --git a/README.md b/README.md
index c48cd3c..c84ec3c 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,10 @@ and install it with
         APNS.pass = ''
         # Just in case your pem need a password
 
+   Alternatively, If you don't have the certificate stored in a file, you can pass any object that responds to ``read``. 
+
+        APNS.pem = StringIO.new(pem_string)
+
 ### Usage
 
 #### Sending a single notification:
diff --git a/lib/pushmeup/apns/core.rb b/lib/pushmeup/apns/core.rb
index 5d74778..57016b6 100644
--- a/lib/pushmeup/apns/core.rb
+++ b/lib/pushmeup/apns/core.rb
@@ -46,16 +46,25 @@ def self.feedback
 
     return apns_feedback
   end
-  
+
   protected
 
+  def self.pem_data
+    raise "Your pem file is not set. (APNS.pem = /path/to/cert.pem or object that responds to read)" unless pem
+    if pem.respond_to? :read
+      data = pem.read
+      pem.rewind if pem.respond_to?(:rewind)
+    else
+      raise "The path to your pem file does not exist!" unless File.exist?(pem)
+      data = File.read(pem)
+    end
+    data
+  end
+
   def self.open_connection
-    raise "The path to your pem file is not set. (APNS.pem = /path/to/cert.pem)" unless self.pem
-    raise "The path to your pem file does not exist!" unless File.exist?(self.pem)
-    
     context      = OpenSSL::SSL::SSLContext.new
-    context.cert = OpenSSL::X509::Certificate.new(File.read(self.pem))
-    context.key  = OpenSSL::PKey::RSA.new(File.read(self.pem), self.pass)
+    context.cert = OpenSSL::X509::Certificate.new(self.pem_data)
+    context.key  = OpenSSL::PKey::RSA.new(self.pem_data, self.pass)
 
     sock         = TCPSocket.new(self.host, self.port)
     ssl          = OpenSSL::SSL::SSLSocket.new(sock,context)
@@ -65,12 +74,9 @@ def self.open_connection
   end
   
   def self.feedback_connection
-    raise "The path to your pem file is not set. (APNS.pem = /path/to/cert.pem)" unless self.pem
-    raise "The path to your pem file does not exist!" unless File.exist?(self.pem)
-    
     context      = OpenSSL::SSL::SSLContext.new
-    context.cert = OpenSSL::X509::Certificate.new(File.read(self.pem))
-    context.key  = OpenSSL::PKey::RSA.new(File.read(self.pem), self.pass)
+    context.cert = OpenSSL::X509::Certificate.new(self.pem_data)
+    context.key  = OpenSSL::PKey::RSA.new(self.pem_data, self.pass)
     
     fhost = self.host.gsub('gateway','feedback')
     puts fhost