Most text files need to have end-of-line delimiters, which are done in a few different ways depending on operating system. On modern operating systems such as Microsoft Windows and Unix-like systems, text files do not contain any special EOF character, because file systems on those operating systems keep track of the file size in bytes. In operating systems such as CP/M and MS-DOS, where the operating system does not keep track of the file size in bytes, the end of a text file is denoted by placing one or more special characters, known as an end-of-file marker, as padding after the last line in a text file. A text file exists stored as data within a computer file system.
SourceĪ text file (sometimes spelled textfile an old alternative name is flatfile) is a kind of computer file that is structured as a sequence of lines of electronic text. PNG was published as informational RFC 2083 in March 1997 and as an ISO/IEC 15948 standard in 2004. PNG files use the file extension PNG or png and are assigned MIME media type image/png. A PNG file contains a single image in an extensible structure of chunks, encoding the basic pixels and other information such as textual comments and integrity checks documented in RFC 2083. The PNG working group designed the format for transferring images on the Internet, not for professional-quality print graphics therefore non-RGB color spaces such as CMYK are not supported. PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without an alpha channel for transparency), and full-color non-palette-based RGB or RGBA images. PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF) - unofficially, the initials PNG stood for the recursive acronym 'PNG's not GIF'.
#Png to text converter portable#
Portable Network Graphics (PNG) is a raster-graphics file format that supports lossless data compression.