Hi is there a possible method to extract and obtain attachments such as font files (.ttf) from a mkv file via the mkvtoolnix gui application itself? I can only add attachments, and enable or disable them, but I am unable to find a way to extract them in the application.
MKVToolNix GUI doesn’t contain a component corresponding to the mkvextract binary yet. I don’t know if I ever implement one, to be quite honest. For the specific use case of attachments you can use the GUI’s header editor, though: open the file in it & right-click on the attachment to save in the tree of elements & chose “Save attachment content to file” from the context menu. This only works for attachments, not for the other things mkvextract could extract.
There are third-party GUIs for mkvextract you can use.
Thank you for your help! Saving attachment content to file helped serve the purpose of what I was trying to do.
On a side note, thank you for your work on MKVToolNix! This tool has been immensely helpful.