Portable Document Format (PDF) is a file format created by Adobe Systems for document exchange. PDF is used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system. Each PDF file encapsulates a complete description of a fixed-layout 2D document that includes the text, fonts, images, and 2D vector graphics which compose the documents.
The best way to view PDF files is locally using a reader. Several free readers for every system are available at pdfreaders.org.
This work is in the public domain in the United States because it meets three requirements:
it was first published outside the United States (and not published in the U.S. within 30 days),
it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States,
it was in the public domain in its home country (India) on the URAA date (1 January 1996).
For background information, see the explanation on Non-U.S. copyrights. This template applies to works first published in India. For anonymous works, photographs, cinematographic works, government works, works of corporate authorship or of international organizations, and posthumous works (other than those above), this template applies to works published before January 1, 1941, and for any other kind of work, this template applies if the author died before January 1, 1941. Please also note that this template should not be used for sound recordings.