eSign Document with Barcode Signature Leave feedback
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A barcode or bar code is a way of presenting data in a visual, machine-readable form. Generally speaking, barcode is an image of a rectangular form that consists of parallel black lines and white spaces of different widths.
Barcodes are used in various areas where quick identification is necessary - as part of the purchase process in retail stores, in warehouses to track inventory, and on invoices to assist in accounting, among many other uses.
Barcodes allow storing of product-related data like manufacturing and expiry dates, manufacturer name, country of origin, and product price. There are plenty of barcode types nowadays because different companies use different combinations of numbers and bars in their barcodes depending on their needs. From the document signature perspective, Barcode may contain different characters (letters, digits, or symbols) and may have various lengths and sizes depending on the type and settings to keep signature information, title, subject, or short encrypted data.
GroupDocs.Signature for Python via .NET supports a wide range of Barcode types that can be used to create electronic signatures within the documents. Please refer to the BarcodeTypes description to get the full list of supported barcodes.
To specify different options for Barcode signature GroupDocs.Signature for Python via .NET provides BarcodeSignOptions class. The main fields are:
- encode_type - specifies the Barcode type (AustralianPost, Codabar, EAN13, OPC, etc.);
- text - specifies the Barcode text.
Here are the steps to eSign a document with the Barcode signature using GroupDocs.Signature for Python via .NET API:
- Create a new instance of Signature class and pass the source document path as a constructor parameter.
- Instantiate the BarcodeSignOptions object according to your requirements and specify the Barcode type by setting the encode_type property with one of the predefined supported types. Set the text property value.
- Call the Sign method of the Signature class instance and pass the BarcodeSignOptions to it.
This example shows how to sign a PDF document with a Barcode signature using Python:
import groupdocs.signature as signature
from groupdocs.signature.options import BarcodeSignOptions
from groupdocs.signature.domain import BarcodeTypes
import groupdocs.signature.domain as gsd
import sys
import os
def run():
with signature.Signature("./sample.pdf") as sign:
# Create barcode signature options
options = BarcodeSignOptions()
# Set barcode text
options.text = "John Smith"
# Set barcode type
options.encode_type = BarcodeTypes.QR
# Set barcode position
options.left = 100
options.top = 100
# Set barcode size
options.width = 100
options.height = 100
# Set barcode colors
options.fore_color = gsd.Color.BLUE
options.back_color = gsd.Color.WHITE
options.border_color = gsd.Color.BLACK
# Set barcode border
options.border_visiblity = True
options.border_dash_style = gsd.DashStyle.DASH
options.border_weight = 2
# Sign document
sign.sign("./SampleSigned.pdf", options)
You can customize the barcode signature further with additional options:
import groupdocs.signature as signature
from groupdocs.signature.options import BarcodeSignOptions
from groupdocs.signature.domain import BarcodeTypes
import groupdocs.signature.domain as gsd
import sys
import os
def run():
with signature.Signature("./sample.pdf") as sign:
# Create barcode signature options
options = BarcodeSignOptions("JohnSmith")
# Setup Barcode encoding type
options.encode_type = BarcodeTypes.QR
# Set signature position and size
options.left = 100
options.top = 100
options.width = 200
options.height = 100
# Set advanced options
options.fore_color = gsd.Color.BLUE
options.back_color = gsd.Color.WHITE
options.opacity = 0.8
options.rotation_angle = 45
# Set barcode alignment
options.horizontal_alignment = gsd.HorizontalAlignment.CENTER
options.vertical_alignment = gsd.VerticalAlignment.CENTER
# Add border
options.border_color = gsd.Color.BLACK
options.border_dash_style = gsd.DashStyle.SOLID
options.border_weight = 2
# Sign document
sign.sign("./SampleSigned.pdf", options)
GroupDocs.Signature supports various barcode types. Here’s an example showing how to use different barcode types:
import groupdocs.signature as signature
from groupdocs.signature.options import BarcodeSignOptions
from groupdocs.signature.domain import BarcodeTypes
# Initialize signature
with signature.Signature("sample.pdf") as sign:
# Create barcode signature options
options = BarcodeSignOptions("1234567890")
# Setup different Barcode encoding types
# For numeric data
options.encode_type = BarcodeTypes.EAN_13
# For alphanumeric data
# options.encode_type = BarcodeTypes.CODE_128
# For QR codes
# options.encode_type = BarcodeTypes.QR
# For 2D barcodes
# options.encode_type = BarcodeTypes.DATA_MATRIX
# Set signature position
options.left = 100
options.top = 100
# Sign document
sign.sign("SampleSigned.pdf", options)
This guide demonstrates how to use GroupDocs.Signature for Python via .NET to add barcode-based signatures to documents. It covers creating, configuring, and applying barcode signatures with support for various barcode types and customization options. For further exploration, refer to related guides on document information and advanced signing techniques.
You may easily run the code above and see the feature in action in our GitHub examples:
Along with the full-featured Python library, we provide simple but powerful free online apps.
To generate barcodes and/or sign your files with barcodes for free, you can use the Barcode Generator online app.
To sign PDF, Word, Excel, PowerPoint, and other documents you can use the other online apps from the GroupDocs.Signature App Product Family.
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