parsePDFStatement.ts

  parsePDFStatement = async () => {
    try {
      const pdfPath = this.setPDFPath();
      const loadingTask = this.pdf.getDocument(pdfPath);
      await loadingTask.promise
        .then((doc) => {
          const { numPages } = doc;
          console.log("# Document Loaded");
          console.log(`Number of Pages: ${numPages}`);
          console.log();
          let lastPromise = doc.getMetadata().then((data) => {
            console.log("# Metadata Is Loaded");
            console.log("## Info");
            console.log(JSON.stringify(data.info, null, 2));
            console.log();
            if (data.metadata) {
              console.log("## Metadata");
              console.log(JSON.stringify(data.metadata.getAll(), null, 2));
              console.log();
            }

            const loadPage = (pageNum) => doc.getPage(pageNum).then((page) => {
              console.log(`# Page ${pageNum}`);
              const viewport = page.getViewport({ scale: 1.0 });
              console.log(`Size: ${viewport.width}x${viewport.height}`);
              console.log();
              return page
                .getTextContent()
                .then((content) => {
                  // Content contains lots of information about the text layout and
                  // styles, but we need only strings at the moment
                  const strings = content.items.map((item) => item.str);
                  console.log("## Text Content");
                  console.log(strings.join(" "));
                })
                .then(() => {
                  console.log();
                });
            });
            // Loading of the first page will wait on metadata and subsequent loadings
            // will wait on the previous pages.
            for (let i = 1; i <= numPages; i += 1) {
              lastPromise = lastPromise.then(loadPage.bind(null, i));
            }
            return lastPromise;
          });
        }, (reason) => { throw new Error(reason); });
    } catch (error) {
      throw new Error("It be broken!");
    }
  };