A watermark is a recognizable image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper. There are two main ways of producing watermarks in paper; the dandy roll process, and the more complex cylinder mould process.
The Adobe Acrobat PDF (Portable Document Format) software throws out an “Acrobat failed to connect to a DDE server” error message for some users. That […]
In the world of smartphones and busy people, a large chunk of the population relies heavily on sending SMS. Whether it’s a personal message or a […]