>It should be much easier than that. You should should be able to serially test if each edit decodes to a sane PDF structure that's pointed out in the article.

>It should be much easier than that. You should should be able to serially test if each edit decodes to a sane PDF structure that's pointed out in the article. It's easy for plaintext sections, but not for compressed sections. Didn't notice any mention of checksums.