Byte offsets of every %%EOF trailer marker

Returns one integer per trailer end-of-file marker in the source bytes. A clean single-revision PDF reports one value. Incremental updates append additional bodies / xref tables and trailers, each marked by another %%EOF. Wraps FPDF_GetTrailerEnds.

Usage

pdf_doc_trailer_ends(doc)

Arguments

doc

A pdfium_doc from pdf_doc_open(), or a character path.

Value

Integer vector of byte offsets (one per trailer). Empty when PDFium reports none. Returns NA for any offset that exceeds R's 32-bit signed integer range (files larger than 2 GB).

Details

Useful for incremental-update analysis, signature byte-range validation, and PDF repair workflows.