Re: Embed files other than source code in PDF file?

[Werner LEMBERG]

>>  I have been using the line  
>>    
>>  #(ly:set-option 'embed-source-code #t)  
>>    
>>  to embed the lilypond files I used in the PDF, but was wondering
>>  if there was a procedure I could call to embed some other file,
>>  such as a PDF of the source I used for the transcription?  Sorry,
>>  looking through the docs I couldn't find anything on this.  I know
>>  you could also do this with the finished pdf using Adobe Acrobat
>>  or something else, but would like to make this happen
>>  automatically.
> 
> Since 2.23.11, you can do
> 
> ```
> #(ly:note-extra-source-file "path/to/transcription-source.pdf")
> ```

Reading the documentation of this function I would never imagine that
it can be used to embed arbitrary files into a LilyPond PDF...

I've filed

  https://gitlab.com/lilypond/lilypond/-/issues/6622


     Werner