A Practical Guide for Authors, Trainers, and Publishers (Especially for PDF-Based Sales) If you sell educational content—such as a TOEFL preparation guide—or a professional “how-to” manual, you’ve likely faced this challenge: “Customers want a PDF version so they can take
How to Add a Secure Time Stamp to a PDF or Digital Document for Authentication and Protection?
When working with digital documents, ensuring their authenticity and preventing tampering is crucial. One of the most effective ways to achieve this is by adding a time stamp to the document. A time stamp provides a verified date and time,