PDFprover
PDFprover is a formal verification tool designed to reason about properties of PDF documents and their rendering. It provides a formal model of the PDF format and a proof assistant that enables users to specify invariants about a PDF file and to check that these invariants hold under transformation, rendering, and decoding. The project is intended for researchers and developers working on correctness, reliability, and security of PDFs.
The tool comprises a specification language for describing PDF objects, streams, and cross-reference structures, a deductive
Key features include a formal, machine-checkable model of PDF primitives, support for writing and checking invariants
PDFprover is used in academic and industrial settings to study conformance to the PDF specification, assess