  This paper presents a detailed description of the acquisition and processing
of a large body of imaging data for three fields in the globular cluster M4
taken with the Wide Field and Planetary Camera 2 aboard the Hubble Space
Telescope. Analysis with the ALLFRAME package yielded the deepest photometry
yet obtained for this cluster. The resulting data-set for 4708 stars (positions
and calibrated photometry in V, I, and, in two fields, U) spanning
approximately six cluster core radii is available on the AAS CD-ROM (or email a
request to RAI). The scientific analysis is deferred to three companion papers,
which investigate the significant white dwarf population discovered and the
main sequence population.
