Test files changed and updated readme.

README.md

 document
   .convert(options)
   .then((res) => {
-    console.log("Res1", res);
+    console.log("res", res); // Success or Error
   })
   .catch((e) => {
     console.log("e", e);

convert.js

 
     const proc = spawn(_cmd, _args);
 
-    proc.stdout.on("data", (data) => {
-      // console.log("stdout", data.toString());
-    });
+    // proc.stdout.on("data", (data) => {
+    //   // console.log("stdout", data.toString());
+    // });
 
     proc.stderr.on("error", function (err) {
       reject(err);

test/test.js

 describe("Convert files to pdf or/and image", function () {
   const options = {
     libreofficeBin: "C:\\Program Files\\LibreOffice\\program\\sooffice.exe",
-    sourceFile: `${global.appRoot}/source/Metro_Style.pptx`,
+    sourceFile: `${global.appRoot}/source/file_example_PPT_250kB.ppt`,
     outputDir: `${global.appRoot}/files/`,
     img: true,
   };
   });
 
   it("should convert pdf to image", function () {
-    options.sourceFile = `${global.appRoot}/source/Metro_Style.pdf`;
+    options.sourceFile = `${global.appRoot}/source/file_example_PPT_250kB.pdf`;
     options.outputDir = `${global.appRoot}/files/`;
     options.reSize = 800;
     document.convert(options).then((res) => {
   });
 
   it("should convert pdf only", function (done) {
-    options.sourceFile = `${global.appRoot}/source/Metro_Style.pptx`;
+    options.sourceFile = `${global.appRoot}/source/file_example_PPT_250kB.ppt`;
     options.img = false;
     document.convert(options).then((res) => {
       expect(res).to.equal("Success");