Re: [NTG-context] Cannot access Lua function

On Sun, 31 Oct 2021, Hans Hagen via ntg-context wrote:

in that case you probably need to hide more .. (when you process with \nopdfcompression at the top you can look in the pdf, i.e. compression is not encryption

one thing you can do is make a copy of lpdf-xmp.lmt and wipe all tricky values and then use that to make a format

but if security is important, maybe better is to use "qpdf" to encrypt the file (you can then also prevent editing for instance)

qpdf is also good at stripping metadata: qpdf --empty --pages input.pdf -- output.pdf Aditya