diff options
| -rw-r--r-- | libqpdf/Pl_AES_PDF.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/libqpdf/Pl_AES_PDF.cc b/libqpdf/Pl_AES_PDF.cc index d9754981..a43d7e69 100644 --- a/libqpdf/Pl_AES_PDF.cc +++ b/libqpdf/Pl_AES_PDF.cc @@ -102,10 +102,15 @@ Pl_AES_PDF::finish() { if (this->offset != this->buf_size) { - throw std::runtime_error( - "aes encrypted stream length was not a multiple of " + - QUtil::int_to_string(this->buf_size) + " bytes (offset = " + - QUtil::int_to_string(this->offset) + ")"); + // This is never supposed to happen as the output is + // always supposed to be padded. However, we have + // encountered files for which the output is not a + // multiple of the block size. In this case, pad with + // zeroes and hope for the best. + assert(this->buf_size > this->offset); + std::memset(this->inbuf + this->offset, 0, + this->buf_size - this->offset); + this->offset = this->buf_size; } flush(true); } |