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> The DEDA toolkit allows anyone to anonymize documents by removing the tracking dots at the software level Sounds like the tracking tech is implemented in the

> The DEDA toolkit allows anyone to anonymize documents by removing the tracking dots at the software level Sounds like the tracking tech is implemented in the proprietary drivers. If only the free software movement had filled its original purpose (freeing printer drivers¹) for more models… ¹https://www.fsf.org/blogs/community/201cthe-printer-story201d-redux-a-testimonial-about-the-injustice-of-proprietary-firmware https://www.fsf.org/blogs/community/201cthe-printer-story201... Edit: looks like it may be in the firmware on the printer itself, not drivers on computers, as h-node warns of tracking even on printers with full compatibility with blobless, FSF-endorsed distros eg. Trisquel GNU/Linux-libre: https://h-node.org/printers/view/en/2215/HP-DeskJet-2700-series/1/1/undef/undef/undef/undef/compatibility/undef https://h-node.org/printers/view/en/2215/HP-DeskJet-2700-ser...

rtkwe 6y ago
DEDA is for anonymizing post scanning as far as I can tell, so it still relies on whoever you're providing the documents to knowing they need to do it.
- pabs3 6y ago
  Apparently DEDA has some downsides, and pdf-redact-tools/dangerzone are better options: https://lists.inventati.org/message/20200308.154747.1b4d1245.en.html https://lists.inventati.org/message/20200308.154747.1b4d1245... https://github.com/firstlookmedia/pdf-redact-tools https://github.com/firstlookmedia/pdf-redact-tools https://github.com/firstlookmedia/dangerzone https://github.com/firstlookmedia/dangerzone
grishka 6y ago
> looks like it may be in the firmware on the printer itself One thing that has me baffled is why there's so much speculation and black-box approach when it should definitely be possible to reverse engineer those firmwares to directly get definite answers to all possible questions. Why does no one seem to even consider dumping the firmware from a printer and reverse-engineering it?

rtkwe 6y ago

DEDA is for anonymizing post scanning as far as I can tell, so it still relies on whoever you're providing the documents to knowing they need to do it.

pabs3 6y ago
Apparently DEDA has some downsides, and pdf-redact-tools/dangerzone are better options: https://lists.inventati.org/message/20200308.154747.1b4d1245.en.html https://lists.inventati.org/message/20200308.154747.1b4d1245... https://github.com/firstlookmedia/pdf-redact-tools https://github.com/firstlookmedia/pdf-redact-tools https://github.com/firstlookmedia/dangerzone https://github.com/firstlookmedia/dangerzone

grishka 6y ago

> looks like it may be in the firmware on the printer itself One thing that has me baffled is why there's so much speculation and black-box approach when it should definitely be possible to reverse engineer those firmwares to directly get definite answers to all possible questions. Why does no one seem to even consider dumping the firmware from a printer and reverse-engineering it?