Saving your diagram and printing your diagram is as easy as creating and modifying your document.
Dia supports saving and printing to printers. If you have gnome-print installed, the printing is very easy!
The print command can be found in the File menu when right-clicking on the canvas.
Dia supports exporting to numerous formats for excellent web publishing. Some of them include:
Computer Graphics Metafile (.cgm)
Encapsulated Postscript (.eps)
Native Dia Format (.dia)
Portable Network Graphics (.png)
Scalable Vector Graphics (.svg)