Bulgarian is an Indo-European language, a member of the Southern branch of the Slavic language family. wikipedia.org

English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca. wikipedia.org

Microsoft Office is an office suite of desktop applications, servers and services for the Microsoft Windows and OS X operating systems. wikipedia.org

Microsoft Office Word is a word processor designed by Microsoft. wikipedia.org

AutoCAD is a commercial software application for 2D and 3D computer-aided design (CAD) and drafting wikipedia.org

Typing is the process of writing or inputting text by pressing keys on a typewriter, keyboard, cell phone, or a calculator wikipedia.org

A data entry clerk, sometimes called a typist, is a member of staff employed to type data into a database using a keyboard. The keyboards used can often have specialist keys and multiple colours to help them in the task and speed up the work. wikipedia.org

Microsoft Excel is a proprietary commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. wikipedia.org

PDF conversion is the process of converting PDF documents, an ubiquitous format for digital documents, to other formats, such as Microsoft Office formats (Word, Excel, Powerpoint), HTML, and computer graphics formats (GIF, JPEG, PNG).

SEO content is any content created with the goal of attracting search engine traffic. wikipedia.org

An article is a written work published in a print or electronic medium. It may be for the purpose of propagating the news, research results, academic analysis or debate. wikipedia.org

Gambling is the wagering of money or something of material value (referred to as "the stakes") on an event with an uncertain outcome with the primary intent of winning additional money and/or material goods. Typically, the outcome of the wager is evident within a short period. wikipedia.org