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forensics

How some log entries vanish sooner than others

Sometimes, when you return to examine entries in the log a few hours after they were written, many of them have vanished. How come?

April 20, 2021 Macs, Technology

Bookmarks, a type of Alias: their access and use

They’re Base-64 encoded data which is related to the Finder Alias. Here’s how to resolve them in an app, at the command line, and in code.

May 21, 2020 Macs, Technology

Back to school: studentd and Classroom in Mojave 10.14.4

If you’ve updated to macOS 10.14.4, you’ve already installed supporting software to use your Mac in a classroom. Was this an error in the update? What does it do?

April 1, 2019 Macs, Technology

Further improvements to Podofyllin’s Source window

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Restores XML metadata stored in text format, and now gives the option to view raw PDF source as well.

March 14, 2019 Macs, Technology

PDF without Adobe: 18 Seeing inside PDF more clearly

Looking at the source of a PDF file isn’t easy, as most of it is streams of binary data. Here’s an easier way, which also comes with a search feature.

March 13, 2019 Macs, Technology

PDF without Adobe: 17 Unredacting Manafort’s documents and recovering PDF versions

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How to reveal incorrectly redacted content in a PDF document, and discover previous versions of that document inside its file.

March 11, 2019 General, Language, Macs, Technology

PDF without Adobe: 16 Reading PDF source

How you can tell whether a PDF file is likely to contain orphaned content and other problems, as available now in Podofyllin.

March 9, 2019 Macs, Technology

PDF without Adobe: 15 macOS can sanitize your PDFs

When I opened a PDF to inspect its source, the file was quite different to that seen in BBEdit. Was my file system broken?

March 8, 2019 General, Language, Macs, Technology

PDF without Adobe: 14 PDF is inherently not secure

PDF is an invaluable, universal document format which is fundamentally flawed, allowing it to leak unintended content and worse. Here’s how this happens.

March 6, 2019 General, Language, Macs, Technology

PDF without Adobe: 8 Security, integrity and forensics

Can you get malware in PDF? How far can you trust a PDF, or could it be a forgery? How to sign PDFs, and what data may remain hidden inside them.

February 19, 2019 General, Language, Macs, Technology

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