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History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...
A PDF file is often a combination of vector graphics, text, and bitmap graphics. The basic types of content in a PDF are: Typeset text stored as content streams (i.e., not encoded in plain text ); Vector graphics for illustrations and designs that consist of shapes and lines;
History of Ethiopia. Ethiopia is one of the oldest countries in Africa; [ 1] the emergence of Ethiopian civilization dates back thousands of years. Abyssinia or rather "Ze Etiyopia" was ruled by the Semitic Abyssinians (Habesha) composed mainly of the Amhara, Tigrayans and the Cushitic Agaw.
Acrobat Messenger is a document utility for Acrobat users that was released by Adobe Systems in 2000 to convert paper documents into PDF files that can be e-mailed, faxed, or shared online. Acrobat Reader Touch is a free PDF document viewer developed and released on December 11, 2012, by Adobe Systems for the Windows Touch user interface.
The history of Nigeria can be traced to the earliest inhabitants whose remains date from at least 13,000 BC through early civilizations such as the Nok culture which began around 1500 BC. Numerous ancient African civilizations settled in the region that is known today as Nigeria, such as the Kingdom of Nri, [ 1] the Benin Empire, [ 2] and the ...
History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [ 1] is the systematic study and documentation of human past. [ 2][ 3] The period of events before the invention of writing systems is considered prehistory. [ 4] ". History" is an umbrella term comprising past events as well as the ...
The sport of cricket has a known history beginning in the late 16th century England. It became an established sport in the country in the 18th century and developed globally in the 19th and 20th centuries. International matches have been played since the 19th-century and formal Test cricket matches are considered to date from 1877.
A Brief History of Time: From the Big Bang to Black Holes is a book on theoretical cosmology by the physicist Stephen Hawking. It was first published in 1988. Hawking wrote the book for readers who had no prior knowledge of physics. In A Brief History of Time, Hawking writes in non-technical terms about the structure, origin, development and ...