Digital signatures are one of the most advanced and secure type of an electronic signature. These signatures provide the highest level assurance and are used to comply with legal and regulatory requirements. Digital signatures use a certificate-based digital ID to authenticate the signer's identity and bind each signature to the document using encryption. With the LEADTOOLS SDK, developers can use LEADTOOLS PDF libraries to retrieve information on these digital signatures. The .NET and Java PDFSignature Class contains properties of a PDF digital signature.

Digital number recognition from LCD displays can be a challenge when it comes to recognizing seven-segment or dot-matrix displays. This is because the lines in the numbers do not actually connect when forming the number. When performing OCR on images that contain these fonts, you will need to do some image processing to increase the accuracy. This can easily be done with two functions from the LEADTOOLS Image Processing SDK that is included with LEADTOOLS Recognition and Document Imaging products.

Employee onboarding is the process of getting a new hire set up within your company's system and ready to go. This usually comes with loads of paperwork for the HR department to fill out, or even type in. I can almost guarantee you that there isn't an HR rep that enjoys inputting all of this data. What could be tedious, error-prone data entry can be done in a matter of seconds with perfect accuracy when using the LEADTOOLS Barcode SDK and the AAMVAID class.

Digital images are everywhere you look. There's no escaping them. They can be found in just about every email, they're all over social media, and they can be embedded throughout PDFs. Some may embed images into PDFs to make the document look better or to provide visuals. Others may do this to show images for legal reasons, such as insurance adjusters.

Continuing my adventure of "Going Paperless", I needed an easy way to encrypt PDF files before I added them to Evernote. To do this, I used the LEADTOOLS PDFFile() class to add a user password to a file. I created a console application with code to register itself into the Windows Explorer shell. Now I can right click any PDF file and encrypt it with a password. The LEADTOOLS code to do this is very easy; it took me longer to figure out how to edit the registry to add the application to the Windows Explorer context menu then it did to use LEADTOOLS to add the password.

One call got it done:

new PDFFile( fileName, password ) {
   SecurityOptions = new PDFSecurityOptions {
      UserPassword = newPassword,
      EncryptionMode = PDFEncryptionMode.RC128Bit
   },
   CompatibilityLevel = PDFCompatibilityLevel.PDF15
}.Convert( 1, -1, null );