Choose a border style, thickness and colour, add a title if you want one, and turn on ruled lines if you need writing space. Check the preview and press Print.
Classic double rule, thick and thin combinations, dotted, dashed, rounded corners and a corner-ornament frame. All are drawn with CSS rather than images, so they print at your printer's full resolution instead of looking pixelated.
Yes. Turn on ruled lines and choose the spacing, which turns the sheet into bordered writing paper for classrooms, letters or notices. Leave it off for a plain frame you can print a document into or write freehand on.
No, as long as your print dialog is set to 100% scale. The border sits inside the printable margin every consumer printer supports, and the on-screen preview shows the true page boundary so you can see the clearance before printing.