/usr/share/applications/diffpdf.desktop is in diffpdf 2.1.3-1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Version=1.0
Name=DiffPDF
Comment=Compare two PDF files
Exec=diffpdf
Icon=diffpdf
Terminal=false
Type=Application
Categories=Utility;Qt;
|