fix: remove public access from do space and generate signed url wherever PDF files are accessed

apps/OpenSignServer/cloud/parsefunction/SignatureAfterFind.js

@@ -0,0 +1,22 @@
+import getPresignedUrl from './getSignedUrl.js';
+
+async function SignatureAfterFind(request) {
+  if (request.objects.length === 1) {
+    if (request.objects) {
+      const obj = request.objects[0];
+      const ImageURL = obj?.get('ImageURL') && obj?.get('ImageURL');
+      const Initials = obj?.get('Initials') && obj?.get('Initials');
+
+      if (ImageURL) {
+        obj.set('ImageURL', getPresignedUrl(ImageURL));
+      }
+
+      if (Initials) {
+        obj.set('Initials', getPresignedUrl(Initials));
+      }
+
+      return [obj];
+    }
+  }
+}
+export default SignatureAfterFind;