diff --git a/src/lib/docx-pleading.ts b/src/lib/docx-pleading.ts
index e6aa9ac..e40e8aa 100644
--- a/src/lib/docx-pleading.ts
+++ b/src/lib/docx-pleading.ts
@@ -27,8 +27,10 @@ export interface PleadingFootnote {
 export interface PleadingSignature {
   /** Multi-line block placed under the signature line (name, bar no., firm, etc.) */
   block: string;
-  /** Optional PNG/JPG bytes of a scanned signature placed above the line */
+  /** Optional PNG/JPG bytes of a scanned signature placed above the line (for DOCX) */
   imageBytes?: ArrayBuffer | Uint8Array;
+  /** Same image as a data URL (for PDF generator, which needs a string) */
+  imageDataUrl?: string;
   imageType?: "png" | "jpg" | "jpeg";
 }