Copy /ViewerPreferences from one document to another

Wraps FPDF_CopyViewerPreferences. Copies the source document's /ViewerPreferences dictionary (PageLayout, PageMode, NonFullScreenPageMode, Direction, ViewArea, ViewClip, PrintArea, PrintClip, PrintScaling, Duplex, PickTrayByPDFSize, PrintPageRange, NumCopies, etc.) into the destination document. PDFium creates the entry on dest_doc if absent, replaces it otherwise.

Usage

pdf_docs_copy_viewer_preferences(dest_doc, src_doc)

Arguments

dest_doc

A pdfium_doc opened with readwrite = TRUE.

src_doc

Source pdfium_doc whose viewer preferences are read.

Value

Invisibly returns dest_doc.

Details

Useful when assembling a derived document — concatenation, n-up, page reordering — that should inherit the display and print hints the publisher set on the original.