//! PDF digital signature support.
//!//! Parses and verifies digital signatures in PDF documents per
//! ISO 32000-2:2020, Section 12.8. Supports PKCS#7 / CMS signatures
//! with SHA-256 and SHA-512 digests.
modinfo;modverify;pubuseinfo::{SignatureInfo, SubFilter};pubuseverify::{compute_sha256, compute_sha512, verify_signature_bytes, SignatureValidity};