In search contexts, "UPd" can also be a typo for "UPD" (University of the Philippines Diliman) but that is unrelated here. Combined with "Mikha Dadok," it unequivocally means "Updated."
Because such PDFs are often shared through church networks or small publishers, they may not always appear in general search engines. Try these approaches:
He scrolled to the second page. The text was there, but it was laid out like code.
Therefore, the most probably refers to a collection of prayers and meditations based on the Book of Micah , used in a specific liturgical or personal devotional context, particularly within certain Indonesian Christian communities.