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from groupdocs.parser import Parser
from groupdocs.parser.templates import Template, TemplateField, TemplateRegexPosition

template = Template([
    TemplateField(
        TemplateRegexPosition(r"Invoice Number\s+(?<value>[A-Z0-9\-]+)"),
        "InvoiceNumber",
    )
])

with Parser("./invoice.pdf") as parser:
    data = parser.parse_by_template(template)
    if data is not None:
        fields = data.get_fields_by_name("InvoiceNumber")
        if fields:
            invoice_number = fields[0].text
            print(f"Invoice number: {invoice_number}")

from groupdocs.parser import Parser
from groupdocs.parser.data import Rectangle, Point, Size
from groupdocs.parser.templates import (
    Template,
    TemplateItem,
    TemplateTable,
    TemplateTableParameters,
)

table_area = Rectangle(Point(40.0, 300.0), Size(515.0, 98.0))
columns = [40.0, 120.0, 330.0, 390.0, 470.0, 555.0]

table = TemplateTable(
    parameters=TemplateTableParameters(table_area, columns),
    name="Details",
)

template = Template([table])

with Parser("./invoice.pdf") as parser:
    data = parser.parse_by_template(template)
    if data is not None:
        fields = data.get_fields_by_name("Details")
        if fields:
            details = fields[0].page_area
            print(f"Rows extracted: {details.row_count}")