CustomJS + Google Drive: merged PDFs, ready to share
Pull PDF links, merge them into one clean file with CustomJS, then store the final…
Turn emailed PDFs and scans into clean, approved invoice records. Extract line items, match POs, flag duplicates, and sync to Sheets or accounting tools so you get paid faster.
A workflow watches for new invoices in places like Gmail, Google Drive, or an upload form. It runs OCR to read the document, then uses AI to map fields (vendor, invoice number, due date, subtotal, tax, total, line items) into a consistent structure. Next, it checks rules: totals match, currency is expected, invoice number isn’t a duplicate, and required fields are present. Finally, it routes approvals and syncs the data to Google Sheets or accounting tools.
Usually, no. If you can connect Gmail and Google Drive, you can run most templates and just edit a few fields like your approval channel or spreadsheet columns.
For many teams, it cuts invoice admin in half. Instead of spending about 2 hours a week downloading PDFs, typing details, and chasing approvals, you review exceptions and approve what’s already structured. The bigger win is consistency: fewer typos, fewer duplicates, and less back-and-forth with vendors. Honestly, the first month often pays for itself once you stop rework and late-payment fire drills.
You’ll need an n8n workspace, access to where invoices arrive (like Gmail or Google Drive), and an AI/OCR provider such as OpenAI. Most setups also use a destination like Google Sheets for tracking, or a webhook to pass data into your accounting system. Have a few sample invoices ready, including tricky ones (multi-page, different currencies, odd layouts). Start with extraction, then add validation and approvals once the data looks right.
Pull PDF links, merge them into one clean file with CustomJS, then store the final…
Pull a PDF from a link, extract only the pages you need with CustomJS, and…
Send receipt photos in WhatsApp and see them appear in Google Sheets. No typing vendors…
Receipts in Google Drive get checked for duplicates, then logged to Google Sheets and emailed…
Files sent in Telegram are saved to Google Drive and made searchable with OCR. Find…
Turn Tally submissions into branded Google Docs PDF invoices. Email them to clients and store…
Turn scanned medical PDFs into clean Google Sheets rows with Mistral OCR. Reduce retyping and…
Pull receipts from Gmail into Google Sheets and keep duplicates out. Get cleaner monthly cash…
Every Gmail attachment is saved to a chosen Google Drive folder automatically. Keep invoices and…
Get instant access to every AI workflow and prompt. One email, full access.
Join 5,000+ automation pros. No spam.
Get instant access to the template and step-by-step guide
Full access unlocked. Here's what you can do now:
Tell us what you'd like to automate — we'll show you what's possible for your team.