diff --git a/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionStream.java b/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionStream.java
index 68aef2ce..34fd05ca 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionStream.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/encryption_signing/EncryptionStream.java
@@ -30,6 +30,9 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
+ * OutputStream that produces an OpenPGP message. The message can be encrypted, signed, or both,
+ * depending on its configuration.
+ *
  * This class is based upon Jens Neuhalfen's Bouncy-GPG PGPEncryptingStream.
  * @see <a href="https://github.com/neuhalje/bouncy-gpg/blob/master/src/main/java/name/neuhalfen/projects/crypto/bouncycastle/openpgp/encrypting/PGPEncryptingStream.java">Source</a>
  */