diff --git a/src/main/java/org/apache/sling/commons/clam/ClamService.java b/src/main/java/org/apache/sling/commons/clam/ClamService.java
index 99f9680..eae268f 100644
--- a/src/main/java/org/apache/sling/commons/clam/ClamService.java
+++ b/src/main/java/org/apache/sling/commons/clam/ClamService.java
@@ -24,6 +24,9 @@
 import org.jetbrains.annotations.NotNull;
 import org.osgi.annotation.versioning.ProviderType;
 
+/**
+ * Service to scan data for malware with ClamAV.
+ */
 @ProviderType
 public interface ClamService {
 
diff --git a/src/main/java/org/apache/sling/commons/clam/ScanResult.java b/src/main/java/org/apache/sling/commons/clam/ScanResult.java
index 27c9cad..4e57080 100644
--- a/src/main/java/org/apache/sling/commons/clam/ScanResult.java
+++ b/src/main/java/org/apache/sling/commons/clam/ScanResult.java
@@ -21,6 +21,9 @@
 import org.jetbrains.annotations.NotNull;
 import org.osgi.annotation.versioning.ProviderType;
 
+/**
+ * Scan result contains the message from Clam, the parsed status and additional metadata.
+ */
 @ProviderType
 public class ScanResult {
 
@@ -67,6 +70,9 @@
         return Status.OK.equals(status);
     }
 
+    /**
+     * Status based on reply message from Clam (<code>OK</code>, <code>FOUND</code>, <code>ERROR</code>) or <code>UNKNOWN</code> if parsing reply message failed.
+     */
     public enum Status {
         OK,
         FOUND,
diff --git a/src/main/java/org/apache/sling/commons/clam/internal/ClamdService.java b/src/main/java/org/apache/sling/commons/clam/internal/ClamdService.java
index 9753126..e03293f 100644
--- a/src/main/java/org/apache/sling/commons/clam/internal/ClamdService.java
+++ b/src/main/java/org/apache/sling/commons/clam/internal/ClamdService.java
@@ -46,6 +46,9 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+/**
+ * Service for scanning data with Clam daemon.<br>Connections are established via TCP/IP.
+ */
 @Component(
     property = {
         Constants.SERVICE_DESCRIPTION + "=Sling Commons Clamd Service",