The PDF format is unbelievably complex, far more than is necessary for the average sales brochure or report. Given that nearly all reader implementations are w

The PDF format is unbelievably complex, far more than is necessary for the average sales brochure or report. Given that nearly all reader implementations are written in C/C++, it's always going to be an easy target. Sandboxing hash helped a lot, but there's just a lot to go wrong and always will be.