initial commit

apps/OpenSignServer/cloud/parsefunction/pdf/SignPDF.cjs

@@ -0,0 +1,31 @@
+const signer = require("node-signpdf").default;
+
+class SignPDF {
+  constructor(pdfBuffer, certBuffer) {
+    this.pdfDoc = pdfBuffer;
+    this.certificate = certBuffer;
+  }
+  /**
+   * @return Promise<Buffer>
+   */
+  async signPDF() {
+    let newPDF = signer.sign(this.pdfDoc, this.certificate, {
+      passphrase: "emudhra",
+    });
+    return newPDF;
+  }
+
+  /**
+   * @param {Uint8Array} unit8
+   */
+  static unit8ToBuffer(unit8) {
+    let buf = Buffer.alloc(unit8.byteLength);
+    const view = new Uint8Array(unit8);
+
+    for (let i = 0; i < buf.length; ++i) {
+      buf[i] = view[i];
+    }
+    return buf;
+  }
+}
+module.exports = SignPDF;