https://blog.didierstevens.com/2009/05/14/malformed-pdf-documents/
Malformed PDF Documents | Didier Stevens
pdf documents didiermalformed
https://blog.didierstevens.com/2009/07/01/embedding-and-hiding-files-in-pdf-documents/
Embedding and Hiding Files in PDF Documents | Didier Stevens
My corrupted PDF quip inspired me to program another steganography trick: embed a file in a PDF document and corrupt the reference, thereby effectively making...
pdf documents didierembedding