Docs: Updates minimum version of .NET required & updates Document.Save.

[jamie-lemon]

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[jamie-lemon]

@MaksymTkachuk I'm just confirming the preserve_metadata param in PyMuPDF and will update this. note, our .NET source code snakes cases these params - not a big deal , but the docs were wrong. Also we have a parameter appearance - I don't know why? Must be old stuff .and we should remove it from the source code ... please review!

[MaksymTkachuk]

I'm just confirming the preserve_metadata param in PyMuPDF and will update this. note, our .NET source code snakes cases these params - not a big deal , but the docs were wrong. Also we have a parameter appearance - I don't know why? Must be old stuff .and we should remove it from the source code ... please review!

@jamie-lemon
preserve_metadata in snake_case was my mistake.
For C# public APIs, parameters should use camelCase where possible, so I’ve updated them. I’ll upload the result soon.

Examples: preserve_metadata → preserveMetadata, owner_pw → ownerPW, user_pw → userPW, and the other snake_case Save parameters likewise.

On appearance parameter: it is present in PyMuPDF’s code, but not in the PyMuPDF docs. I think we should keep it, since it can still be passed through to the MuPDF engine.
I couldn't find an example of this parameter being used in PyMuPDF, but it is supported in MuPDF.

What do you think?

[jamie-lemon]

@MaksymTkachuk
Yep - let's keep appearance in there then ( will try and find out what this parameter does too )
If you get the PR in to rename the parameters to camel case then I'll update the this PR again here when ready.