I am repeatedly getting "Fatal Error: Nonexistant Page" when I attempt to upload a PDF file in the normal manner. (Add File: Score File.) This file is a PDF printed on MacOS to PDF from Finale, like all the other files I have successfully uploaded. After thinking the problem was an embedded EPS file and re-doing the file so that it doesn't have the embedded EPS, I tried uploading again but no luck.
The only other thing I can think of about this file is that it uses a self-created music font, created a lifetime ago with Fontographer. Could that be the problem? And if so, is it really a problem? This really seems like an IMSLP site bug to me.
The file has four pages and is 452KB. I'll be happy to attach it if the wisdom of the list wishes me to.