ExtractDataByFieldName.cs

// For complete examples and data files, please go to https://github.com/groupdocs-parser/GroupDocs.Parser-for-.NET
// Create a collection of template fields
TemplateField[] templateFields = new TemplateField[]
{
    new TemplateField("FromCompany", TemplateFieldPosition.CreateFixed(new Rectangle(35, 135, 100, 10))),
    new TemplateField("FromAddress", TemplateFieldPosition.CreateFixed(new Rectangle(35, 150, 100, 35))),
    new TemplateField("FromEmail", TemplateFieldPosition.CreateFixed(new Rectangle(35, 190, 150, 2))),
    new TemplateField("ToCompany", TemplateFieldPosition.CreateFixed(new Rectangle(35, 250, 100, 2))),
    new TemplateField("ToAddress", TemplateFieldPosition.CreateFixed(new Rectangle(35, 260, 100, 15))),
    new TemplateField("ToEmail", TemplateFieldPosition.CreateFixed(new Rectangle(35, 290, 150, 2))),
    new TemplateField("InvoiceNumber", TemplateFieldPosition.CreateRegex("Invoice Number")),
    new TemplateField("InvoiceNumberValue", TemplateFieldPosition.CreateRelated("InvoiceNumber",TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("InvoiceOrder", TemplateFieldPosition.CreateRegex("Order Number")),
    new TemplateField("InvoiceOrderValue", TemplateFieldPosition.CreateRelated("InvoiceOrder",TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("InvoiceDate", TemplateFieldPosition.CreateRegex("Invoice Date")),
    new TemplateField("InvoiceDateValue", TemplateFieldPosition.CreateRelated("InvoiceDate", TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("DueDate", TemplateFieldPosition.CreateRegex("Due Date")),
    new TemplateField("DueDateValue", TemplateFieldPosition.CreateRelated("DueDate",TemplateFieldRelatedPositionType.Right,new Size(200, 15))),
    new TemplateField("TotalDue", TemplateFieldPosition.CreateRegex("Total Due")),
    new TemplateField("TotalDueValue", TemplateFieldPosition.CreateRelated("TotalDue",TemplateFieldRelatedPositionType.Right,new Size(200, 15))),
};

// Create a document template
DocumentTemplate template = new DocumentTemplate(templateFields);

// Extract data from PDF
string filePath = Common.GetFilePath(fileName);
DocumentData data = DocumentParser.Default.ParseByTemplate("invoice.pdf", template);

// Get all the fields with "Address" name
IList<DocumentDataField> addressFields = data.GetDataFieldsByName("Address");
if (addressFields.Count == 0)
{
    Console.WriteLine("Address not found");
}
else
{
    Console.WriteLine("Address");
    // Iterate over the fields collection
    for (int i = 0; i < addressFields.Count; i++)
    {
        Console.WriteLine(addressFields[i].Value);
        // If it's a related field:
        if (addressFields[i].RelatedDataField != null)
        {
            Console.Write("Linked to ");
            Console.WriteLine(addressFields[i].RelatedDataField.Value);
        }
    }
}

ExtractDataByFieldName.java

// For complete examples and data files, please go to https://github.com/groupdocs-parser/GroupDocs.Parser-for-Java
// Create a collection of template fields
TemplateField[] templateFields = new TemplateField[]
{
    new TemplateField("FromCompany", TemplateFieldPosition.createFixed(new Rectangle(35, 135, 100, 10))),
    new TemplateField("FromAddress", TemplateFieldPosition.createFixed(new Rectangle(35, 150, 100, 35))),
    new TemplateField("FromEmail", TemplateFieldPosition.createFixed(new Rectangle(35, 190, 150, 2))),
    new TemplateField("ToCompany", TemplateFieldPosition.createFixed(new Rectangle(35, 250, 100, 2))),
    new TemplateField("ToAddress", TemplateFieldPosition.createFixed(new Rectangle(35, 260, 100, 15))),
    new TemplateField("ToEmail", TemplateFieldPosition.createFixed(new Rectangle(35, 290, 150, 2))),
    new TemplateField("InvoiceNumber", TemplateFieldPosition.createRegex("Invoice Number")),
    new TemplateField("InvoiceNumberValue", TemplateFieldPosition.createRelated(
            "InvoiceNumber",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("InvoiceOrder", TemplateFieldPosition.createRegex("Order Number")),
    new TemplateField("InvoiceOrderValue", TemplateFieldPosition.createRelated(
            "InvoiceOrder",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("InvoiceDate", TemplateFieldPosition.createRegex("Invoice Date")),
    new TemplateField("InvoiceDateValue", TemplateFieldPosition.createRelated(
            "InvoiceDate",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("DueDate", TemplateFieldPosition.createRegex("Due Date")),
    new TemplateField("DueDateValue", TemplateFieldPosition.createRelated(
            "DueDate",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("TotalDue", TemplateFieldPosition.createRegex("Total Due")),
    new TemplateField("TotalDueValue", TemplateFieldPosition.createRelated(
            "TotalDue",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
};
  
// Create a document template
DocumentTemplate template = new DocumentTemplate(Arrays.asList(templateFields));
  
// Extract data from PDF
DocumentData data = DocumentParser.DEFAULT.parseByTemplate("invoice.pdf", template);
// Get all the fields with "Address" name
List<DocumentDataField> addressFields = data.getDataFieldsByName("Address");
if (addressFields.size() == 0) {
    System.out.println("Address not fount");
} else {
    System.out.println("Address");
    // Iterate over the fields collection
    for (int i = 0; i < addressFields.size(); i++) {
        System.out.println(addressFields.get(i).getValue());
        // If it's a related field:
        if (addressFields.get(i).getRelatedDataField() != null) {
            System.out.print("Linked to ");
            System.out.println(addressFields.get(i).getRelatedDataField().getValue());
        }
    }
}

ExtractingDataTable.cs

// For complete examples and data files, please go to https://github.com/groupdocs-parser/GroupDocs.Parser-for-.NET
// Create a collection of template fields
TemplateField[] templateFields = new TemplateField[]
{
    new TemplateField("FromCompany", TemplateFieldPosition.CreateFixed(new Rectangle(35, 135, 100, 10))),
    new TemplateField("FromAddress", TemplateFieldPosition.CreateFixed(new Rectangle(35, 150, 100, 35))),
    new TemplateField("FromEmail", TemplateFieldPosition.CreateFixed(new Rectangle(35, 190, 150, 2))),
    new TemplateField("ToCompany", TemplateFieldPosition.CreateFixed(new Rectangle(35, 250, 100, 2))),
    new TemplateField("ToAddress", TemplateFieldPosition.CreateFixed(new Rectangle(35, 260, 100, 15))),
    new TemplateField("ToEmail", TemplateFieldPosition.CreateFixed(new Rectangle(35, 290, 150, 2))),
    new TemplateField("InvoiceNumber", TemplateFieldPosition.CreateRegex("Invoice Number")),
    new TemplateField("InvoiceNumberValue", TemplateFieldPosition.CreateRelated("InvoiceNumber",TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("InvoiceOrder", TemplateFieldPosition.CreateRegex("Order Number")),
    new TemplateField("InvoiceOrderValue", TemplateFieldPosition.CreateRelated("InvoiceOrder",TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("InvoiceDate", TemplateFieldPosition.CreateRegex("Invoice Date")),
    new TemplateField("InvoiceDateValue", TemplateFieldPosition.CreateRelated("InvoiceDate", TemplateFieldRelatedPositionType.Right, new Size(200, 15))),
    new TemplateField("DueDate", TemplateFieldPosition.CreateRegex("Due Date")),
    new TemplateField("DueDateValue", TemplateFieldPosition.CreateRelated("DueDate",TemplateFieldRelatedPositionType.Right,new Size(200, 15))),
    new TemplateField("TotalDue", TemplateFieldPosition.CreateRegex("Total Due")),
    new TemplateField("TotalDueValue", TemplateFieldPosition.CreateRelated("TotalDue",TemplateFieldRelatedPositionType.Right,new Size(200, 15))),
};

// Create detector parameters for "Details" table
TableAreaDetectorParameters detailsTableParameters = new TableAreaDetectorParameters();
detailsTableParameters.Rectangle = new Rectangle(35, 320, 530, 55);

// Create detector parameters for "Summary" table
TableAreaDetectorParameters summaryTableParameters = new TableAreaDetectorParameters();
summaryTableParameters.Rectangle = new Rectangle(330, 385, 220, 65);

// Create a collection of template tables
TemplateTable[] templateTables = new TemplateTable[]
{
    new TemplateTable("details", detailsTableParameters),
    new TemplateTable("summary", summaryTableParameters)
};

// Create a document template
DocumentTemplate template = new DocumentTemplate(templateFields, templateTables);

// Extract data from PDF
string filePath = Common.GetFilePath(fileName);
DocumentData data = DocumentParser.Default.ParseByTemplate("invoice.pdf", template);

// Get all the tables
IList<DocumentDataTable> dataTables = data.GetDataTables();
// Iterate over tables
foreach (DocumentDataTable table in dataTables)
{
    // Print a table name
    Console.WriteLine(table.TableName);
    // Iterate over rows
    for (int r = 0; r < table.RowCount; r++)
    {
        // Iterate over columns
        for (int c = 0; c < table.ColumnCount; c++)
        {
            // Print a value of the cell
            Console.Write(table[r, c]);
            Console.Write(" ");
        }

        Console.WriteLine();
    }
}

ExtractingDataTable.java

// For complete examples and data files, please go to https://github.com/groupdocs-parser/GroupDocs.Parser-for-Java
// Create a collection of template fields
TemplateField[] templateFields = new TemplateField[]
{
    new TemplateField("FromCompany", TemplateFieldPosition.createFixed(new Rectangle(35, 135, 100, 10))),
    new TemplateField("FromAddress", TemplateFieldPosition.createFixed(new Rectangle(35, 150, 100, 35))),
    new TemplateField("FromEmail", TemplateFieldPosition.createFixed(new Rectangle(35, 190, 150, 2))),
    new TemplateField("ToCompany", TemplateFieldPosition.createFixed(new Rectangle(35, 250, 100, 2))),
    new TemplateField("ToAddress", TemplateFieldPosition.createFixed(new Rectangle(35, 260, 100, 15))),
    new TemplateField("ToEmail", TemplateFieldPosition.createFixed(new Rectangle(35, 290, 150, 2))),
    new TemplateField("InvoiceNumber", TemplateFieldPosition.createRegex("Invoice Number")),
    new TemplateField("InvoiceNumberValue", TemplateFieldPosition.createRelated(
            "InvoiceNumber",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("InvoiceOrder", TemplateFieldPosition.createRegex("Order Number")),
    new TemplateField("InvoiceOrderValue", TemplateFieldPosition.createRelated(
            "InvoiceOrder",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("InvoiceDate", TemplateFieldPosition.createRegex("Invoice Date")),
    new TemplateField("InvoiceDateValue", TemplateFieldPosition.createRelated(
            "InvoiceDate",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("DueDate", TemplateFieldPosition.createRegex("Due Date")),
    new TemplateField("DueDateValue", TemplateFieldPosition.createRelated(
            "DueDate",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
    new TemplateField("TotalDue", TemplateFieldPosition.createRegex("Total Due")),
    new TemplateField("TotalDueValue", TemplateFieldPosition.createRelated(
            "TotalDue",
            TemplateFieldRelatedPositionType.Right,
            new Size(200, 15))),
};
  
// Create detector parameters for "Details" table
TableAreaDetectorParameters detailsTableParameters = new TableAreaDetectorParameters();
detailsTableParameters.setRectangle(new Rectangle(35, 320, 530, 55));
  
// Create detector parameters for "Summary" table
TableAreaDetectorParameters summaryTableParameters = new TableAreaDetectorParameters();
summaryTableParameters.setRectangle(new Rectangle(330, 385, 220, 65));
  
// Create a collection of template tables
TemplateTable[] templateTables = new TemplateTable[]
{
    new TemplateTable("details", detailsTableParameters),
    new TemplateTable("summary", summaryTableParameters)
};
  
// Create a document template
DocumentTemplate template = new DocumentTemplate(Arrays.asList(templateFields), Arrays.asList(templateTables));
  
// Extract data from PDF
DocumentData data = DocumentParser.DEFAULT.parseByTemplate("Invoice.pdf", template);
// Get all the tables
List<DocumentDataTable> dataTables = data.getDataTables();
// Iterate over tables
for (DocumentDataTable table : dataTables) {
    // Print a table name
    System.out.println(table.getTableName());
    // Iterate over rows
    for (int r = 0; r < table.getRowCount(); r++) {
        // Iterate over columns
        for (int c = 0; c < table.getColumnCount(); c++) {
            // Print a value of the cell
            System.out.print(table.get_Item(r, c));
            System.out.print(" ");
        }
  
        System.out.println();
    }
}