Sign Pdf documents with custom digital signature appearance Leave feedback
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GroupDocs.Signature contains classes that implements for Pdf document special signature appearances.
Base signature options SignOptions contains property SignOptions.Appearance that could be assigned with the instance of following class
- PdfDigitalSignatureAppearance class implements properties to customize digital siganture appearance.
Here are the steps to add digital signature to PDF document and customize signature appearance with GroupDocs.Signature:
- Create new instance of Signature class and pass source document path as a constructor parameter.
- Compose object of DigitalSignOptions object with all required properties.
- Set DigitalSignOptions.Appearance property with instance of PdfDigitalSignatureAppearance class
- Call Sign method of Signature class instance and pass created DigitalSignOptions to it.
- Analyze SignResult result to check newly created signatures if needed.
This example shows how to add electronic Digital signature to Pdf document with customized appearance.
// initialize Signature instance
using (Signature signature = new Signature("sample.pdf"))
{
DigitalSignOptions options = new DigitalSignOptions("certificate.pfx")
{
// certificate password
Password = "1234567890",
// digital certificate details
Reason = "Approved",
Location = "New York",
// apply custom PDF signature appearance
Appearance = new PdfDigitalSignatureAppearance()
{
// do now show contact details
ContactInfoLabel = string.Empty,
// simplify reason label
ReasonLabel = "?",
// change location label
LocationLabel = "From",
DigitalSignedLabel = "By",
DateSignedAtLabel = "On",
// apply custom appearance color
Background = Color.Red
},
AllPages = true,
Width = 160,
Height = 80,
// setup signature border
Border = new Border()
{
Visible = true,
Color = Color.Red,
DashStyle = DashStyle.DashDot,
Weight = 2
}
};
SignResult signResult = signature.Sign("signed.pdf", options);
}
You may easily run the code above and see the feature in action in our GitHub examples:
- GroupDocs.Signature for .NET examples, plugins, and showcase
- GroupDocs.Signature for Java examples, plugins, and showcase
- Document Signature for .NET MVC UI Example
- Document Signature for .NET App WebForms UI Example
- Document Signature for Java App Dropwizard UI Example
- Document Signature for Java Spring UI Example
Along with the full-featured .NET 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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