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 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.

Even today there are many organizations that rely on fax as a required form of communications. Because of this, receiving faxes is a requirement that much still be met. To do this, many organizations utilize fax services either hosted locally or by a third-party. Many of these services will email received faxes to users as a PDF file.

In a normal facsimile transmission, every other scan-line is skipped. This reduces the amount of data that needs to be sent over the relatively slow connection used to send faxes. To account for the missing scan-lines, the aspect ratio of the pixels is 2:1. It is important to recognize this when displaying the image else you will end up displaying the image incorrectly, making it looked squashed.

LEAD is continuously updating and adding new features to LEADTOOLS. One feature that was rolled into Version 19 after the initial release includes enhanced SVG support. This enhancement allows users to load document and vector formats as SVG, which can then be handed off to other parts of LEADTOOLS such as the Document Writers. In other words, you can convert from formats such as DOC, PDF, DWG, DXF, etc. to other document formats such as PDF/A, HTML, and SVG without rasterization or OCR.

In Convert a Word Document to PDF (C#), I attached a project to show how to do the conversion in .NET. Now I have attached a C/C++ version of the project that will convert vector and document formats to PDF.

This past weekend, I was very fortunate compared to so many people that recently faced and are still having to deal with Hurricane Florence. At home, the power is out, but there is no major damage. I am fortunate. Since there is nothing I can do at the moment about the power and everyone around me is safe, I decided to forget my first-world problems, go to the office, which does have power, and write a small and simple app that solves some common first-world problems. I am hoping that you will find this tool useful, too!