Pin 1 location of FTSH-105-01-L-DV-K and similar header types

Good day,

How would one go through the datasheet of say, FTSH-105-01-L-DV-K, and find which pin is pin 1?

Hello analogcay,

It appears that pin 1 is shown on each of the drawings, depending on style. For example, FTSH-105-01-L-DV-K looks to be on page 2, as shown below.