Gists

This is a sample script for exporting the specific pages from a PDF as a new PDF using Google Apps Script.

In this sample script, pdf-lib is used. In the current stage, it seems that this Javascript can be directly used with Google Apps Script.

Sample script

async function myFunction() {
  // Retrieve PDF data.
  const fileId = "###"; // Please set a file ID of your a PDF file or a file ID of Google Docs files (Document, Spreadsheet, Slide).
  const pageNumbers = [2, 4]; // In this sample, 2 and 4 pages are exported as a PDF.

  const blob = DriveApp.getFileById(fileId).getBlob();

  // Merge PDFs.
  const cdnjs = "https://cdn.jsdelivr.net/npm/pdf-lib/dist/pdf-lib.min.js";
  eval(UrlFetchApp.fetch(cdnjs).getContentText()); // Load pdf-lib
  const setTimeout = function (f, t) {
    Utilities.sleep(t);
    return f();
  };
  const pdfDoc = await PDFLib.PDFDocument.create();
  const pdfData = await PDFLib.PDFDocument.load(
    new Uint8Array(blob.getBytes())
  );
  const pages = await pdfDoc.copyPages(
    pdfData,
    [...Array(pdfData.getPageCount())].map((_, i) => i)
  );
  pages.forEach((page, i) => {
    if (pageNumbers.includes(i + 1)) {
      pdfDoc.addPage(page);
    }
  });
  const bytes = await pdfDoc.save();

  // Create a PDF file.
  DriveApp.createFile(
    Utilities.newBlob([...new Int8Array(bytes)], MimeType.PDF, "sample.pdf")
  );
}

• When this script is run, the specific pages (In this sample, 2 and 4 pages.) in pageNumbers of a PDF file of fileId are exported as a new PDF file.

Gists

This is a sample script for converting various images to PNG Format and JPEG format using Google Apps Script.

The flow of this sample script is as follows.

1. Convert the file to PNG format by the thumbnail link.
2. Convert PNG format to JPEG format if outputFormat is “JPEG”.
3. Create the image data in the JPEG format in the root folder as a file.

Sample script

Please set your file ID and output format.

Gists

This is a sample script for copying a Google Spreadsheet including a container-bound script by removing the container-bound script using Google Apps Script.

When you want to copy a Google Google Spreadsheet including a container-bound script by removing the container-bound script using Google Apps Script, this could be achieved by using “get” and “create” methods of Sheets API before. The sample script is as follows.

Gists

This is a sample script for notifying the new release of Google APIs and Google Apps Script with an email using Google Apps Script.

Recently, I published a sample script of “Retrieving Release Notes of Google Apps Script and Google APIs from RSS using Google Apps Script”. After this was published, I got an email that it wants to automatically notice the new release of Google APIs and Google Apps Script with an email. From this, I prepared a sample script as follows.

Gists

This is a sample script for managing the row height and the column width of a table on Google Slides using Google Apps Script.

In the current stage, Google Slides service (SlidesApp) cannot manage the row height and the column width of the table on Google Slides, while the table width and height can be managed. But, fortunately, when Google Slides API is used, this can be achieved.

In this post, I would like to introduce a sample script for managing the row height and the column width of a table on Google Slides using Google Apps Script.

Gists

This is a sample script for converting the relative reference to the absolute reference and vice versa of A1Notation on Google Spreadsheet using Google Apps Script.

Description

A1Notation is used in the cells on Google Spreadsheet.

As the 1st sample, it supposes that a formula of =A1 is put into a cell “B1”. Under this condition, when the cell “B1” is copied to “B2” and “C1”, the cells “B2” and “C1” have the formulas of =A2 and =B1, respectively. This is the relative reference.

Gists

This is a sample script for comparing the file contents of files on Google Drive using Google Apps Script.

Sample script

Before you use this script, please enable Drive API at Advanced Google services. And also, please set the file IDs you want to check whether the file contents of the files are the same.

function checkFiles_(f, checks = ["md5Checksum", "sha1Checksum", "sha256Checksum"]) {
  files = f.map(id => DriveApp.getFileById(id));
  const fields = [...checks, "id"].join(",");
  const o = files.reduce((o, f) => {
    const mimeType = f.getMimeType();
    if (["FOLDR", "SHORTCUT"].some(m => mimeType == MimeType[m])) {
      throw new Error("Folders cannot be checked.");
    }
    let obj;
    if (mimeType.includes("application/vnd.google-apps")) {
      const name = f.getName();
      f.setName("temp");
      Utilities.sleep(2000);
      obj = Drive.Files.insert({ title: "temp", mimeType: MimeType.PDF }, f.getBlob(), { supportsAllDrives: true, fields });
      f.setName(name);
      Drive.Files.remove(obj.id); // If an error occurs, please use DriveApp.getFileById(obj.id).setTrashed(true);
    } else {
      obj = Drive.Files.get(f.getId(), { supportsAllDrives: true, fields });
    }
    checks.forEach(e => o[e] = o[e] ? [...o[e], obj[e]] : [obj[e]]);
    return o;
  }, {});
  return Object.values(o).every(e => [...new Set(e)].length == 1);
}

// Please run this function.
function main() {
  const file1 = "###fileId1###"; // Please set your file ID of file 1.
  const file2 = "###fileId2###"; // Please set your file ID of file 2.

  const check = checkFiles_([file1, file2]);
  const res = `"${file1}" and "${file2}" are${
    check ? " " : " not "
  }the same data.`;
  console.log(res);
}

• When this script is run, when the file contents of your inputted files are the same, true is returned.

Gists

This is a sample script for exporting Google Documents as HTML with the image hyperlinks using Google Apps Script.

Recently, it seems that the specification for exporting Google Documents as HTML data has been changed. When a Google Document are exported as HTML data before, the images in the Google Document were the image hyperlinks, which are publicly shared. But, in the current stage, when a Google Document is exported as HTML data, the images in the Google Document are the data URL (base64 data) of the images. I guess that this might be related to enhancing the security. When the Google Document is exported as a ZIP file, the HTML and images are separated. But, in this case, the images are required to be included in a specific folder like “/images”. I’m worried that this might bring another issue.

Gists

This is a sample script for retrieving the release notes of Google Apps Script and Google APIs from RSS using Google Apps Script.

Recently, the release notes of Google Apps Script and Google APIs have been published as RSS. By this, the data got to be able to be easily retrieved using XmlService of Google Apps Script. Knowing the latest release notes will be useful for developing the applications. So, I would like to introduce the sample script for retrieving this information.

Gists

This is a sample script for inserting the paragraphs with the checkboxes in Google Documents using Google Apps Script.

In the current stage, Google Documents can create paragraphs with checkboxes as the paragraph bullet. But, unfortunately, this cannot be created by the Google Document service (DocumentApp). Fortunately, it seems that this got to be able to be achieved by Google Docs API. In this post, I would like to introduce a sample script for this.