I have an Adobe Illustrator file that I am opening with Inkscape. Everything works great except some of the text is all screwed up because I don't have all of the appropriate fonts available on my computer. So, my question is... is there any way to find out which fonts in particular I am missing for this specific file?
The only trick I know of is to start editing the text itself; the text toolbar will show you the name of the font, and give you a little '!' icon to show you the font is not installed. As for searching for a bunch of missing fonts en masse, I don't know of any technique. I bet someone could write a script for that though!
Look at ai file in text editor, search for “Font” phrase. If fonts are not converted to outlines and your ai file contains xmp meta or is not compressed, you should be able to read font names directly. One could even do a simple script to simply list used fonts. Also it may be a nice idea for python extension for Inkscape. Try to throw that idea on dev list.
Not possible yet, and I don't think this should be an extension. It's an essential core feature. The way Scribus does it is telling user about missing fonts upon loading a document and suggesting to replace those missing fonts with some of the available ones.
If you have time, please check the bug tracker for an existing report on that, and if there isn't one, please file it. Thanks :)