https://bugs.kde.org/show_bug.cgi?id=436738
--- Comment #16 from Albert Astals Cid <aa...@kde.org> --- > The SHA algorithms don’t make collisions that we should care about. :) I don't understand what you mean with this? > For PDF, the hash of filesize + a couple of 4kB chunks throughout the file > would surely be good enough. For some formats I can imagine users might want > to change small bits of the file in a way this can't detect, but PDF isn't > one of them. So I open a file, add an annotation, save it as filea.pdf then move the annotation around and save it as fileb.pdf. Your algorithm would think it's the same file -- You are receiving this mail because: You are the assignee for the bug.
