#PowerPlatformTip 140: Free Invoice OCR (Process 500 PDFs/Month for €0)

TL;DR: Read and summarize up to 500 PDF invoices/month for free with a free-tier OCR connector plus Azure AI Language summarization.

💡 Challenge

Accounts-payable still receives hundreds of PDF invoices, reminders, and receipts every month. Manual keying of amounts, due dates, and suppliers is slow, costly, and error-prone.

✅ Solution

Combine any free-tier OCR connector (Adobe PDF Services, Cloudmersive PDF/OCR, or Azure Document Intelligence Read F0) with Azure AI Language, Abstractive Summarization F0. One Power Automate flow extracts text from each PDF and returns a clear, three-bullet summary, at zero cost up to 500 pages per month.

flowchart LR
    A["File created<br/>Incoming Invoices"] --> B{"Pick one OCR connector"}
    B -->|standard| C["Adobe PDF Services"]
    B -->|premium| D["Cloudmersive PDF"]
    B -->|standard| E["Azure Read F0"]
    C --> F["Compose: extracted text"]
    D --> F
    E --> F
    F --> G["Azure AI Language<br/>Abstractive Summarization F0"]
    G --> H["Post-process summary"]

🔧 How It’s Done

1. Trigger

🔸 When a file is created (SharePoint / OneDrive → folder Incoming Invoices).

2. OCR action, pick one connector

🔸 Adobe PDF Services (standard)

🔸 Cloudmersive PDF (premium)

🔸 Azure Read F0 (standard)

3. Compose

🔸 Capture the plain OCR text (content or text field).

4. HTTP

🔸 Call Azure AI Language /language:analyze-text with kind=AbstractiveSummarization and summaryLength=short.

5. Post-process

🔸 Send a Teams/Outlook summary, store it in the Dataverse table InvoiceSummaries, then move the PDF to an Archive folder.

🎉 Result

Every new invoice now triggers an automated pipeline, OCR → AI summary → messaging/storage. Finance receives the key facts (total, due date, supplier) within seconds and can focus on approvals instead of data entry.

🌟 Key Advantages

🔸 €0 budget for up to 500 pages per month

🔸 100% Power Platform, no external servers or scripts

🔸 Swappable OCR connectors; keep the same summarization step

🔸 Handles multilingual invoices and receipts

🔸 Seamless upgrade path when your volume grows

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🛠️ FAQ

1. Do I need a premium licence? Only if you choose Cloudmersive (premium connector). Adobe PDF Services and Azure Read F0 use standard or HTTP actions.

2. What about multi-page PDFs with Azure Read F0? The free tier processes only the first two pages. Split longer invoices or upgrade to S0 (€0.01 / page).

3. How do I avoid hitting Azure AI token limits? F0 allows 16,384 characters per request, trim or chunk OCR text for very long invoices.

🔗 Related Tips

• #PowerPlatformTip 115: AI OCR Models, OCR options for reading documents.
• #PowerPlatformTip 143: Reduce AI Costs with Thumbnail-First Document Processing, cut AI spend on document pipelines.