- Update to version 9.1.0
* Incorporate contribution from Masamichi Hosoda to properly handle
signature dictionaries by not including them in object streams,
formatting the Contents key has a hexadecimal string,
and excluding the /Contents key from encryption and decryption.
* Incorporate contribution from Masamichi Hosoda to provide new API
calls for getting file-level information about input and output files,
enabling certain operations on the files at the file level rather
than the object level. New methods include QPDF::getXRefTable(),
QPDFObjectHandle::getParsedOffset(),
QPDFWriter::getRenumberedObjGen(QPDFObjGen),
and QPDFWriter::getWrittenXRefTable().
* Support build-time and runtime selectable crypto providers.
This includes the addition of new classes QPDFCryptoProvider
and QPDFCryptoImpl and the recognition of the QPDF_CRYPTO_PROVIDER
environment variable. Crypto providers are described in depth
in Section 2.3, “Crypto Providers”.
* Addition of the --show-crypto option in support of selectable
crypto providers, as described in Section 2.3, “Crypto Providers”.
* Allow :even or :odd to be appended to numeric ranges for
specification of the even or odd pages from among the pages
specified in the range.
* Add BR on pkgconfig(gnutls) to add support for GnuTLS for encryption
operations.