Arduino Mega Reference Design


The "Reference Design" files for the Arduino Mega board are blank when I import them into Altium Designer. Does anyone know how to fix this, or how to convert a .pdf file to an Altium schematic?


The Eagle schematic file is available here, as part of a zip file.

Can Altium Designer import Eagle schematics?

Yes, Altium can import Eagle files. However, when I load the file from the .zip folder in Altium, the schematic is completely blank.

Eagle is perfectly happy with that schematic. The problem appears to be in Altium.