PDF/R - PDF for Raster Images

What is PDF/R?

PDF/R, short for "PDF for Raster Images," is a specialized subset of the Portable Document Format (PDF) designed for multi-page documents mainly made up of raster images, such as scanned documents. It conforms to the PDF Association's PDF/Raster 1.0 specification and follows the guidelines set by ISO 23504-1:2020, titled "Document management applications, Raster image transport and storage, Part 1: Use of ISO 32000 (PDF/R-1)."

The "R" in PDF/R stands for "raster."

This format is designed for efficient creation and processing on low-end, low-memory embedded devices, particularly scanners, making it easier to add raster image content to PDF files.