diff --git a/libwvdrmengine/docs/Widevine_Modular_DRM_Version_10_Delta.pdf b/libwvdrmengine/docs/Widevine_Modular_DRM_Version_10_Delta.pdf
new file mode 100644
index 00000000..7a2716e1
Binary files /dev/null and b/libwvdrmengine/docs/Widevine_Modular_DRM_Version_10_Delta.pdf differ