eSign document with QR-code signature
What is a QR-code?
QR-code (or Quick Response code) is a sort of two-dimensional barcode that consists of black squares arranged in a square grid on a white background. QR-code can be read by smartphone camera or specialized devices that are dedicated to QR reading - hand-held scanners, handy terminals, fixed scanners that are used after placing it on a desktop, or embedding it in other devices. Usually QR-codes contain data that points to a website or application, emails, or phone numbers, product identifiers, or trackers. Therefore QR-code application scope extends general marketing and item identification to document management.
How to eSign document with QR-Code signature
GroupDocs.Signature allows to eSign documents with QR-codes of various types that is listed in a table below.
|Aztec code||DataMatrix code||GS1 DataMatrix||GS1 QR code||QR|
|Application||transport and ticketing; in airline industry for electronic boarding passes; in rail for tickets sold online and printed out by customers or displayed on mobile phone screens. Code is scanned by a handheld scanner by on-train staff or at the turnstile to validate the ticket. medicine - patient identification wristbands and labels for unit-of-use medications etc.||printed media such as labels and letters; industrial engineering purposes - marking components etc; food industry - to prevent food products being packaged and dated incorrectly;||Used in Healthcare; Government; Industrial. Encodes item additional information, such as: weight; expiration date; batch number; date of manufacture; etc.||Used in marketing to encode additional item information on the package||Widely used in automotive industry and mobile applications. Useful for encoding large amount of data characters and specific URLs.|
|Length||3067 alphanumeric, 3832 numeric, 1914 bytes||2335 alphanumeric, 3116 numeric||2335 alphanumeric 3116 numeric, 1556 bytes||7089 alphanumeric 4296 numeric, 2953 bytes||4296 alphanumeric,|
|7089 numeric, 2953 bytes|
Here are the steps to eSign document with QR-code signature:
- Create new instance of Signature class and pass source document path as a constructor parameter.
- Instantiate the QrCodeSignOptions object according to your requirements and specify EncodeType and Text properties.
- Call sign method of Signature class instance and pass QrCodeSignOptions to it.
The code snippet below demonstrates how to sign PDF document with QR-code signature.
Signature signature = new Signature("sample.pdf"); // create QRCode option with predefined QRCode text QrCodeSignOptions options = new QrCodeSignOptions("JohnSmith"); // setup QRCode encoding type options.setEncodeType(QrCodeTypes.QR); // set signature position options.setLeft(100); options.setTop(100); // sign document to file signature.sign("SampleSigned.pdf", options);
Advanced Usage Topics
To learn more about document eSign features, please refer to the advanced usage section.
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
Free Online App
Along with full-featured .NET library we provide simple, but powerful free Apps.
You are welcome to eSign PDF, Word, Excel, PowerPoint documents with free to use online GroupDocs Signature App.