diff --git a/Armadillo/src/main/java/com/scribd/armadillo/download/drm/DrmLicenseDownloader.kt b/Armadillo/src/main/java/com/scribd/armadillo/download/drm/DrmLicenseDownloader.kt
index 60ab4b2..41c1486 100644
--- a/Armadillo/src/main/java/com/scribd/armadillo/download/drm/DrmLicenseDownloader.kt
+++ b/Armadillo/src/main/java/com/scribd/armadillo/download/drm/DrmLicenseDownloader.kt
@@ -14,7 +14,7 @@ internal interface DrmLicenseDownloader {
 
     /**
      * Download and persist the DRM license
-     * @return the key ID of the DRM license. This key ID can be used to fetch the license from storage
+     * @return object containing information about the downloaded DRM license
      */
     suspend fun downloadDrmLicense(
         requestUrl: String,
diff --git a/Armadillo/src/main/java/com/scribd/armadillo/models/Models.kt b/Armadillo/src/main/java/com/scribd/armadillo/models/Models.kt
index dcfe0ab..2b1b472 100644
--- a/Armadillo/src/main/java/com/scribd/armadillo/models/Models.kt
+++ b/Armadillo/src/main/java/com/scribd/armadillo/models/Models.kt
@@ -144,6 +144,13 @@ data class Chapter(
 
 data class DrmInfo(val drmType: DrmType, val licenseServer: String, val drmHeaders: Map<String, String> = emptyMap()) : Serializable
 
+/**
+ * Object representing information about a downloaded DRM license.
+ *
+ * @param drmKeyId ID used to identify and to retrieve the downloaded license from local storage
+ * @param drmType the type of DRM solution of this license
+ * @param licenseServer the URL of the license server
+ */
 @kotlinx.serialization.Serializable
 data class DrmDownload(
     val drmKeyId: ByteArray,