libTIFF 4.0.3.

Tested successfully with included test tool tiff2pdf.

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libtiff is a set of C functions (a library) that support the manipulation of
TIFF image files. The library requires an ANSI C compilation environment for
building and presumes an ANSI C environment for use.

libtiff provides interfaces to image data at several layers of abstraction (and
cost). At the highest level image data can be read into an 8-bit/sample, ABGR
pixel raster format without regard for the underlying data organization,
colorspace, or compression scheme. Below this high-level interface the library
provides scanline-, strip-, and tile-oriented interfaces that return data
decompressed but otherwise untransformed. These interfaces require that the
application first identify the organization of stored data and select either a
strip-based or tile-based API for manipulating data. At the lowest level the
library provides access to the raw uncompressed strips or tiles, returning the
data exactly as it appears in the file.