How to reveal incorrectly redacted content in a PDF document, and discover previous versions of that document inside its file.
privacy
How you can tell whether a PDF file is likely to contain orphaned content and other problems, as available now in Podofyllin.
When I opened a PDF to inspect its source, the file was quite different to that seen in BBEdit. Was my file system broken?
PDF is an invaluable, universal document format which is fundamentally flawed, allowing it to leak unintended content and worse. Here’s how this happens.
Three ways to remove data from PDFs: redaction, deletion of content, and deletion of annotations. Can you trust them, or do they leak data?
Mojave’s privacy features remain essentially undocumented. Apple hasn’t explained how command tools negotiate TCC’s protection. Why not, and what should we do?
Apple has intentionally made it very hard to troubleshoot problems with privacy protection. Here’s a new feature to help, in a new version of Taccy.
One important requirement for code signatures is with Mojave’s new privacy controls. Are they needed, though?
Can you trust Disk Utility to securely erase hard drives and SSDs? How to prepare your Mac’s internal storage before selling it, so you don’t give your bank details away with it. And much more.
Don’t just throw it in a box and send it off: what happens if its internal storage is replaced or wiped? What about protecting sensitive files? Does a T2 chip make this difficult?
