GroupDocs.Signature for .NET API provides wide range of ways to process numerous documents formats by using electronic signatures. Many types of digital signatures as texts, images, digital certificates, barcodes, QR-codes, stamps or metadata are supported. Customers can add, remove, edit, validate or search digital signatures at PDFs, MS Word documents, MS Excel workbooks, MS PowerPoint presentations, Adobe Photoshop files and various image formats. Astonishing number of additional features and settings are available.
GroupDocs.Signature for .NET includes useful features like verification of Barcode signatures placed at Png documents. Use this opportunity without implementing extra code.
GroupDocs.Signature for .NET 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.
GroupDocs.Signature
// Set up input Png file
string filePath = "input.png";
// Instantiate Signature for input file
using (var signature = new GroupDocs.Signature.Signature(filePath))
{
//Provide verification options
BarcodeVerifyOptions options = new BarcodeVerifyOptions()
{
// process only specified page
PageNumber = 3,
AllPages = false,
// set up text match type
MatchType = TextMatchType.Contains,
// specify text pattern to search
Text = "Special signature",
};
// Verify document signatures
VerificationResult result = signature.Verify(options);
//process result
if (result.IsValid)
{
//..
}
}
Add various electronic signatures to Png file right now by visiting the GroupDocs.Signature App website.
No need to download API
No need to write any code
Just upload the source file
Get download link to save the file
“Verification of electronic signatures placed in various documents. Check quality of signatures in the popular file formats as revealed below.”
(Portable Document Format)
(Microsoft Word Binary Format)
(Office 2007+ Word Document)
(Microsoft Word 2007 Marco File)
(Microsoft Word Template Files)
(Microsoft Word 2007+ Template File)
(Microsoft Word Template File )
(OpenDocument Text File Format)
(OpenDocument Standard Format)
(Rich Text Format)
(Microsoft Excel Spreadsheet (Legacy))
(Open XML Workbook)
(Macro-enabled Spreadsheet)
(Excel Binary Workbook)
(Comma Seperated Values)
(OpenDocument Spreadsheet)
(OpenDocument Spreadsheet Template)
(Excel Template)
(Excel Macro-Enabled Template)
(Microsoft PowerPoint 97-2003)
(Open XML presentation Format)
(PowerPoint Slide Show)
(PowerPoint Slide Show)
(OpenDocument Presentation Format)
(OpenDocument Standard Format)
(Microsoft PowerPoint Template Presentation)
(Microsoft PowerPoint Template File)
(Macro-enabled Presentation File)
(Macro-enabled Slide Show)
(Joint Photographic Expert Group Image)
(Bitmap Image File)
(Graphical Interchange Format)
(Tagged Image File Format)
(Scalar Vector Graphics)
(Raster Web Image Format)
(Windows Metafile)
