GroupDocs.Signature for .NET is a native .NET API to electronically sign digital documents using various signature types such as text, image, barcode, stamp, form-field, QR-code and metadata. Users can add, edit, verify, delete and search digital signatures within PDF, Microsoft Word, Excel worksheets, PowerPoint presentations, Adobe Photoshop, metafiles and image file formats with additional support for customizing signature properties as needed.
GroupDocs.Signature makes it easy for .NET developers to add Code39standard barcodes to PDF files within their applications by implementing a few easy steps.
GroupDocs.Signature for .NET APIs are supported on all major platforms and operating systems. Before executing the code below, please make sure that you have the following prerequisites installed on your system.
using (Signature signature = new Signature("sample.pdf"))
{
// Initialize barcode options with predefined barcode text
BarcodeSignOptions options = new BarcodeSignOptions("JohnSmith")
{
// setup Barcode encoding type
EncodeType = BarcodeTypes.Code39Standard,
// set signature position
Left = 50,
Top = 150,
Width = 200,
Height = 50
};
// Sign PDF file and save result
signature.Sign("signed.pdf", options);
}
Add Code39standard barcodes to PDF files right now by visiting GroupDocs.Signature Live Demos website.
The live demo has the following benefits
No need to download API
No need to write any code
Just upload the source file
Get download link to save the file
Code 39 was developed in 1974 by David Allais and Raymond Stevens, then with Interface Mechanisms Inc. (now Intermec Corporation). It was the first barcode symbology to use alphabetic characters in addition to numeric digits. Variations of Code 39 have been used extensively in multiple industries, notably in the US military as a component of the Logistics Applications of Automated Marking and Reading Symbols (LOGMARS) system.
.NET barcode signatures management API for documents and images. Add barcode signatures to some of the popular file formats as stated below.
(Adobe Portable Document Format)
(Microsoft Word Document)
(Microsoft Word Macro-Enabled Document)
(Microsoft Word Open XML Document)
(Microsoft Word Document Template)
(Word Open XML Document Template)
(Microsoft Word Macro-Enabled Template)
(Open Document Text)
(OpenDocument Text Template)
(Microsoft Excel Binary File Format)
(Microsoft Excel Open XML Spreadsheet)
(Microsoft Excel Macro-Enabled Spreadsheet)
(Microsoft Excel Binary Worksheet)
(Microsoft Excel template)
(Microsoft Excel macro-enabled template)
(Open Document Spreadsheet)
(OpenDocument Spreadsheet Template)
(PowerPoint Presentation)
(PowerPoint Open XML Presentation)
(Microsoft PowerPoint 97-2003 Slide Show)
(PowerPoint Open XML Slide Show)
(OpenDocument Presentation)
(OpenDocument Presentation Template)
(WebP Image)
(Tagged Image File Format)
(JPEG Image)
(Graphics Interchange Format)
(Portable Network Graphic)
(Bitmap File Format)
(CorelDraw Vector Graphic Drawing)
(Scalable Vector Graphics)
(Adobe Photoshop Document)
(Windows Metafile)
(Corel Metafile eXchange Image)
(Deja Vu)
(Microsoft PowerPoint Macro-Enabled Slide Show)
