🚚 ➕ add node-signpdf copy to signing packgage until npm includes fix

packages/signing/node-signpdf/dist/helpers/plainAddPlaceholder/findObject.js

@@ -0,0 +1,29 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _getIndexFromRef = _interopRequireDefault(require("./getIndexFromRef"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * @param {Buffer} pdf
+ * @param {Map} refTable
+ * @returns {object}
+ */
+const findObject = (pdf, refTable, ref) => {
+  const index = (0, _getIndexFromRef.default)(refTable, ref);
+  const offset = refTable.offsets.get(index);
+  let slice = pdf.slice(offset);
+  slice = slice.slice(0, slice.indexOf('endobj', 'utf8')); // FIXME: What if it is a stream?
+
+  slice = slice.slice(slice.indexOf('<<', 'utf8') + 2);
+  slice = slice.slice(0, slice.lastIndexOf('>>', 'utf8'));
+  return slice;
+};
+
+var _default = findObject;
+exports.default = _default;