Line endpoints of a line annotation

Wraps FPDFAnnot_GetLine. PDF line annotations carry their start and end points in /L rather than /Rect; this helper exposes those endpoints as a named numeric vector.

Usage

pdf_annot_line(annot)

Arguments

annot

A pdfium_annot of subtype "line" (PDFium also returns endpoints for annotations with a /L entry).

Value

Named numeric vector c(start_x, start_y, end_x, end_y). All-NA when the annotation has no line entry.