# Extract Tables from Scanned Invoices (Non-Selectable PDF) | DigiParser

Source: https://www.digiparser.com/solutions/extract-tables-from-scanned-invoices

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Scanned Invoice Tables

Last updated: May 2026 - Published by [DigiParser](/)

OCR + table extraction

# Extract Tables from Scanned Invoices (When the PDF Has No Selectable Text)

If invoice PDFs are **image-only scans**, you need **OCR plus table extraction** -- not copy-paste or Tabula alone. Plain OCR gives text without rows; table parsers like Camelot need a searchable text layer first. Invoice-specific document AI (IDP) OCRs the scan, detects line-item tables, and exports **Excel or CSV** even when borders are missing or cells are merged.

Full invoice workflows: [invoice parser](/solutions/invoice-parser). PDF data extraction: [extract data from PDF](/solutions/extract-data-from-pdf). PDF to Excel: [PDF to Excel](/solutions/pdf-to-excel).

[Extract scanned invoice tables -- free trial](https://app.digiparser.com/auth/join)[See OCR workflow](#workflow)

## Open-source vs cloud vs no-code

**Reliable open-source pipeline:** Scanned PDF -> OCRmyPDF -> pdfplumber or Camelot -> CSV. **Limitation:** Camelot/Tabula do not read image-only PDFs directly. **Production shortcut:** Textract AnalyzeExpense, Azure/Google invoice models, or DigiParser without building Python glue.

{
  "vendor": "ABC Ltd",
  "invoice\_no": "INV-1002",
  "items": \[
    { "description": "Widget", "qty": 5, "price": 20 }
  \],
  "total": 100
}

## Recommended workflow (5 steps)

1.  1
    
    ### OCR the scan
    
    Convert image-only PDF pages to machine-readable text with layout coordinates -- Tesseract, OCRmyPDF, or cloud OCR (Textract, Azure, Google Document AI).
    
2.  2
    
    ### Detect table regions
    
    Find line-item blocks on each page; scanned pages have no embedded text for Camelot/Tabula until OCR runs first.
    
3.  3
    
    ### Extract words with positions
    
    Capture bounding boxes, then group words into rows (Y-axis) and columns (X-axis) to rebuild the table.
    
4.  4
    
    ### Validate & fix breaks
    
    Merged cells, skewed scans, stamps, and multi-line descriptions often need rules or human review on exceptions.
    
5.  5
    
    ### Export CSV or Excel
    
    Output line items with description, quantity, unit price, and line total -- or structured JSON for APIs.
    

## Preprocessing for better table OCR

*   Deskew rotated pages
*   Scan at 300 DPI or higher
*   Increase contrast / remove background noise
*   Crop margins before OCR
*   Use OCRmyPDF or OpenCV preprocessing for batch quality

## Approaches compared

Approach

Scanned PDFs

Line-item tables

Setup effort

Output

DigiParser (no-code IDP)

This page

Native -- uploads, email, API

Line-item tables without templates

Minutes to start

XLSX, CSV, JSON

Amazon Textract AnalyzeExpense

Yes

Invoice + table APIs

AWS integration

JSON

Azure / Google invoice models

Yes

Prebuilt invoice processors

Cloud setup

JSON

OCRmyPDF + pdfplumber / Camelot

After OCR layer added

Camelot/Tabula need text PDF first

Python pipeline

CSV via script

Tabula (desktop)

Poor -- text PDFs only

GUI table pick

Manual per file

CSV

Docparser

OCR included

Template or trained layouts

Low-code

CSV, Zapier

Tesseract only

Plain text

No structure -- rebuild yourself

High

Text

Docparser from $39/mo -- see [DigiParser vs Docparser](/compare/docparser)

## FAQ

### How do I extract tables from scanned invoices when the PDF isn't selectable text?

Run OCR first so the page has text and coordinates, then extract tables: either use invoice-specific cloud APIs (Textract AnalyzeExpense, Azure Invoice model, Google Document AI) or an IDP tool like DigiParser that OCRs scans and reconstructs line-item rows automatically. Pure table tools (Camelot, Tabula) do not work on image-only PDFs until you add a searchable text layer with OCRmyPDF or similar.

### Why don't Camelot or Tabula work on my scanned invoice PDF?

Camelot and Tabula read embedded PDF text objects. Scanned invoices are images inside the PDF -- there is no selectable text until OCR runs. Workflow: OCRmyPDF (or cloud OCR) -> then pdfplumber/Camelot, or skip the DIY stack and use invoice IDP.

### What is the fastest no-code option for scanned invoice line items?

Upload scans to DigiParser or a dedicated invoice parser (Docparser, Docsumo). DigiParser exports Excel/CSV with line items and does not require per-vendor coordinate templates. For developers, Textract AnalyzeExpense is the common cloud choice.

### How do I handle merged cells and broken rows?

Expect post-processing: group OCR words by alignment, split multi-line descriptions, and route low-confidence rows to review. Document AI handles this better than rule-only parsers on messy scans.

### What's the pricing?

DigiParser free trial: 20 documents. Paid from $20/month on yearly billing.

Part of Invoice & Accounts Payable

## Complete Your Document Processing

[

### Invoice Parser

Explore the full invoice & accounts payable processing suite





](/solutions/invoice-parser)

### Related Solutions

Other document types you might need

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### PDF to Excel

Export extracted tables to spreadsheets





](/solutions/pdf-to-excel)[

### OCR Software

AI OCR beyond plain text recognition





](/solutions/ocr-software)[

### Extract Data from PDF

General PDF data extraction





](/solutions/extract-data-from-pdf)

## Turn scanned invoice tables into Excel

Upload a non-selectable PDF scan -- get line items in CSV or XLSX. Start with 20 free documents.

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