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pdfsigner 0.3.0

• Synced the pure-Rust backend to pdf_signer engine v0.3.2, which closes a multi-agent security review. Verification now judges the whole document: verify_pdf_signature() returns the attributes document_intact, all_valid and all_trusted; a PDF whose content was changed by an unsigned incremental update after signing is no longer reported as valid overall (each signature still reports valid over its own byte range). Document timestamps get their own chain_trusted; timestamp authorities must carry the RFC 3161 id-kp-timeStamping purpose before their time is trusted; revocation dated at or before the signing time is honoured even from later CRL/OCSP evidence; certificate extensions are processed per RFC 5280 §6.1.3.
• New per-signature fields is_timestamp and trusted_time.
• Signing: reason, name, location and contact_info with non-ASCII text (e.g. “Aprovação”) are now written as UTF-16 text strings and render correctly in every viewer; the previous trailer’s /Info (Title, Author) is preserved; a second B-LT/B-LTA signature merges into the existing /DSS; the claimed signing time is written to /M by default. Encrypted PDFs (even with an empty user password) and documents certified with DocMDP P=1 are refused with a clear error instead of producing a corrupted file.
• Build: the vendored Rust dependency set now resolves for rustc 1.81 (September 2024), in line with CRAN’s two-year toolchain policy. pdf_signer declares rust-version = 1.81 and depends on p12-keystore 0.1.5 (0.2.x is edition 2024 / rustc 1.85+, and 0.2.1 needs rustc 1.88 — the cause of the 0.2.5 installation failure on CRAN’s check machine); time is 0.3.44, ureq 3.2.1, getrandom 0.3.1 (its later WebAssembly-only dependencies are 2024 edition, and cargo 1.81 refuses to parse any vendored 2024-edition manifest even for targets it never builds). The lockfile is resolved with cargo’s MSRV-aware resolver (CARGO_RESOLVER_INCOMPATIBLE_RUST_VERSIONS=fallback) before vendoring, and the built tarball is installed offline with rustc 1.81.0 as part of the release checks.

pdfsigner 0.2.5

• Accepted by CRAN on 2026-07-02.
• Fixed an installation ERROR on rustc 1.86.0 (reported for 0.2.4 via CRAN’s “Additional issues” / donttest check). Transitive dependencies time/time-core/time-macros (pulled in via lopdf and x509-parser/asn1-rs) had quietly raised their MSRV to rustc 1.88.0. We now pin time = "=0.3.45" (MSRV 1.83.0) in src/rust/Cargo.lock before vendoring, so the offline build only requires a rustc over two years old.
• pdf_signer is now consumed as a normal crates.io dependency (default-features = false, features = ['https']) instead of a bundled, hand-synced path copy; src/rust/vendor.tar.xz was re-vendored accordingly. No user-facing behavior change.

pdfsigner 0.2.4

• Fixed the M1mac linker WARNING (“object file … was built for newer ‘macOS’ version than being linked”) on the C/assembly objects of the ring crate, by exporting an explicit MACOSX_DEPLOYMENT_TARGET for the cargo build step (tools/config.R / src/Makevars.in) so all objects share a deployment target at or below R’s link target.

pdfsigner 0.2.3

• Synced the pure-Rust backend to pdf_signer engine v0.2.0.

pdfsigner 0.2.2

• CRAN submission. Do not regenerate the extendr wrappers at install time (the wrappers are committed); the Windows/CRAN build only runs cargo build --lib.

pdfsigner 0.2.0

• Replaced the previous Java/pdfsig backend with a bundled pure-Rust engine wrapped via extendr. No Java, OpenSSL, or external command-line tools required.
• Public API: sign_pdf() and verify_pdf_signature().

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.