Google Apps Script PDF Conversion: Complete Guide
Google Apps Script gives you programmatic control over your Google Drive without leaving the Google ecosystem. You can write a script that converts any Google Doc to PDF, save the result back to Drive, send it by email, and trigger the whole process on a schedule. This guide covers every practical pattern, from the simplest one-doc conversion to folder processing, error handling, and deploying as a shared web app.
What Apps Script can do for PDF conversion
Apps Script accesses Google Drive through the DriveApp and Drive APIs. To export a Google Doc as PDF, you request the file's export URL with the MIME type for PDF and save the blob to a Drive folder or download it directly. The same approach works for Google Sheets and Slides. You can run this as a one-time function, attach it to a timed trigger, or fire it from an event like a form submission or a file change in Drive.
The core export pattern
The fundamental pattern for exporting a Google Doc as PDF in Apps Script uses the Drive API to fetch the export URL: fetch the file by ID, use UrlFetchApp.fetch() with the export URL and the user's OAuth token, get the PDF blob, and save it with DriveApp.createFile(). This pattern is the foundation of every other automation described on this page.
Setting up triggers
Triggers are what make Apps Script automation hands-free. A time-based trigger runs your export function at a chosen interval: every hour, once a day, once a week, or on a specific date. An event-based trigger fires when something happens in Drive or a connected service. Set up triggers in the Apps Script editor under Triggers > Add Trigger, or programmatically using ScriptApp.newTrigger().
Quotas and limits
Apps Script has daily quotas on URL fetch calls, email sends, and Drive operations. For a typical workflow converting tens or hundreds of documents per day, you will not hit these limits. For high-volume use cases, check the current quotas in Google's documentation and consider splitting large folder jobs across multiple trigger runs to stay within limits.
The Docs to PDF extension for non-scripted workflows
Apps Script is ideal when you want automation to run without any human interaction. If you occasionally need to convert a batch of documents and prefer a visual interface, the Docs to PDF Chrome extension is faster to set up. Both tools use Google's export API and produce identical PDF output. Use the extension for ad-hoc work and Apps Script for recurring, scheduled, or event-driven workflows.
Specific Guides
Basic Google Apps Script to Convert a Doc to PDF
Write a simple Apps Script function that exports a single Google Doc to PDF and saves it to Drive.
Read guide →Run a Google Apps Script PDF Conversion on a Schedule
Set up a time-based trigger in Apps Script so your Google Docs convert to PDF automatically at a set interval.
Read guide →Apps Script: Convert All Google Docs in a Folder to PDF
Write an Apps Script that loops through every Google Doc in a Drive folder and exports each one as a PDF.
Read guide →Apps Script: Save Converted PDFs to a Google Drive Folder
After converting a Google Doc to PDF with Apps Script, save the resulting file to a specific folder in Google Drive.
Read guide →Apps Script: Email a PDF When Conversion is Complete
Automatically send the converted PDF as an email attachment using Apps Script's MailApp after the conversion finishes.
Read guide →Apps Script: Convert Google Doc to PDF with a Custom Filename
Control the output filename when converting Google Docs to PDF with Apps Script. Add dates, document metadata, or custom prefixes.
Read guide →Apps Script: Convert Google Docs to PDF for Multiple Users
Set up an Apps Script that converts documents across multiple users in a Google Workspace organization.
Read guide →Apps Script PDF Conversion with Error Handling
Add try-catch blocks, logging, and failure notifications to your Apps Script PDF conversion so errors do not silently break your workflow.
Read guide →Deploy a Google Apps Script PDF Converter as a Web App
Turn your Apps Script PDF conversion function into a web app that any team member can trigger via URL without opening the script editor.
Read guide →Free Google Apps Script PDF Conversion
Apps Script PDF conversion is completely free. Learn what the limits are and when you might need an alternative.
Read guide →Frequently Asked Questions
Do I need a Google Workspace account to use Apps Script for PDF conversion?
No. Apps Script is available on personal Google accounts. Some advanced features like shared drives require a Workspace account, but basic Drive operations including PDF export work on any Google account.
Can Apps Script convert an entire folder of Google Docs to PDF?
Yes. Use DriveApp.getFolderById() to get the folder, then iterate over the files with folder.getFiles(). For each file that is a Google Doc, call the export function and save the resulting PDF.
How do I run an Apps Script on a schedule?
Open your script in the Apps Script editor, click the clock icon to open Triggers, and add a time-based trigger. Choose the function to run, the type of time trigger (hours, days, weeks, or a specific date), and the interval.
Is Apps Script PDF conversion free?
Yes. Apps Script itself is free. The PDF export uses Google's Drive API, which is included with your Google account at no charge. Daily quotas apply but are generous enough for most use cases.
Can I send the converted PDF by email from Apps Script?
Yes. Use MailApp.sendEmail() with the PDF blob attached. You can include a custom subject, body, and recipient list. Gmail's daily email limit applies.
What happens if a conversion fails in Apps Script?
Unhandled errors stop the script. Wrap your conversion logic in a try-catch block, log errors with Logger.log(), and optionally send yourself an error notification. This way a single failed file does not stop the rest of the batch.
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