  The Herschel Space Observatory was the fourth cornerstone mission in the
European Space Agency (ESA) science programme with excellent broad band imaging
capabilities in the sub-mm and far-infrared part of the spectrum. Although the
spacecraft finished its observations in 2013, it left a large legacy dataset
that is far from having been fully scrutinised and still has a large potential
for new scientific discoveries. This is specifically true for the photometric
observations of the PACS and SPIRE instruments. Some source catalogues have
already been produced by individual observing programs, but there are many
observations that risk to remain unexplored. To maximise the science return of
the SPIRE and PACS data sets, we are in the process of building the Herschel
Point Source Catalogue (HPSC) from all primary and parallel mode observations.
Our homogeneous source extraction enables a systematic and unbiased comparison
of sensitivity across the different Herschel fields that single programs will
generally not be able to provide. The catalogue will be made available online
through archives like the Herschel Science Archive (HSA), the Infrared Science
Archive (IRSA), and the Strasbourg Astronomical Data Center (CDS).
