Draft: Resolve "[Document Sealing] Implement PDF parser"

Closes #1

dist/index.js

 "use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-const pdfParser_1 = require("./pdfParser");
+const pdfParser_1 = __importDefault(require("./pdfParser"));
 exports.default = pdfParser_1.default;