It goes great when viewed on digital documents as if you're sending your copy in portable document format or PDF. (resumeprofessionalwriters.com)
PDF stands for Portable Document Format and it is designed to enable you to permanently fix the layout of a document and send it to others easily. (completelynovel.com)
Use Portable Document Format (PDF) files as a way of preserving the integrity of files when distributing them. (slaw.ca)