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A Text electronic signature is an arbitrary text that is added to a document in a native way depending on the type of the document. GroupDocs.Signature provides the text signature feature and allows customizing a wide range of text settings - from font name, size and color to alignment, borders, shadow effects etc. This is how a text signature may look like:
Let’s try to add a text signature to a PDF programmatically using Python.
To manipulate text signatures programmatically GroupDocs.Signature for Python via .NET provides the TextSignOptions class and the whole workflow is as easy as follows:
- Create a new instance of the Signature class and pass the source document path as a constructor parameter.
- Instantiate the TextSignOptions object according to your requirements and specify the signature options.
- Call the Sign method of the Signature class instance and pass the TextSignOptions to it.
This example shows how to add a text signature to a document using Python:
import groupdocs.signature as signature
from groupdocs.signature.options import TextSignOptions
from groupdocs.signature.domain import SignatureFont, TextSignature
import groupdocs.signature.domain as gsd
import sys
import os
def run():
with signature.Signature("./sample.pdf") as sign:
# Create text signature options
text_options = TextSignOptions("John Smith")
# Set advanced options
text_options.font = gsd.SignatureFont()
text_options.font.size = 20
text_options.font.family_name = "Arial"
text_options.font.bold = True
text_options.font.italic = True
text_options.fore_color = gsd.Color.BLUE
text_options.back_color = gsd.Color.WHITE
text_options.opacity = 0.8
text_options.rotation_angle = 45
# Set text alignment
text_options.horizontal_alignment = gsd.HorizontalAlignment.CENTER
text_options.vertical_alignment = gsd.VerticalAlignment.CENTER
# Add border
text_options.border_color = gsd.Color.BLACK
text_options.border_style = gsd.DashStyle.SOLID
text_options.border_width = 2
# Sign document
sign.sign("./sample_signed.pdf", text_options)
You can customize the text signature further with additional options:
import groupdocs.signature as signature
from groupdocs.signature.options import TextSignOptions
from groupdocs.signature.domain import SignatureFont, TextSignature
import groupdocs.signature.domain as gsd
import sys
import os
def run():
with signature.Signature("./sample.pdf") as sign:
# Create text signature options
text_options = TextSignOptions("John Smith")
# Set advanced options
text_options.font = gsd.SignatureFont()
text_options.font.size = 20
text_options.font.family_name = "Arial"
text_options.font.bold = True
text_options.font.italic = True
text_options.fore_color = gsd.Color.BLUE
text_options.back_color = gsd.Color.WHITE
text_options.opacity = 0.8
text_options.rotation_angle = 45
# Set text alignment
text_options.horizontal_alignment = gsd.HorizontalAlignment.CENTER
text_options.vertical_alignment = gsd.VerticalAlignment.CENTER
# Add border
text_options.border_color = gsd.Color.BLACK
text_options.border_style = gsd.DashStyle.SOLID
text_options.border_width = 2
# Sign document
sign.sign("./sample_signed.pdf", text_options)
This guide explains how to add text-based signatures to documents with GroupDocs.Signature for Python via .NET. It covers configuring text properties such as font, color, size, and position, and applying the text signature to a document. The signed document is then saved with the added text signature.
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 sign PDF, Word, Excel, PowerPoint, and other documents you can use the online apps from the GroupDocs.Signature App Product Family.
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