Convert PDF page coordinates to device (screen) coordinates — pdf_page_to_device • pdfium

Inverse of pdf_device_to_page(). Wraps FPDF_PageToDevice.

Usage

pdf_page_to_device(
  page,
  start_x,
  start_y,
  size_x,
  size_y,
  rotate,
  page_x,
  page_y
)

Arguments

page: A pdfium_page from pdf_page_load().
start_x, start_y: Integer — device-pixel position of the display area's top-left.
size_x, size_y: Integer — pixel size of the rendering window.
rotate: Integer — 0, 1, 2, or 3 (clockwise quarter turns). Same convention as PDFium's other rendering functions.
page_x, page_y: Numeric — the point in PDF user-space (points) to convert.

Value

Named integer vector c(x, y) in device pixels. c(NA, NA) on failure.

See also

pdf_device_to_page().