I've been asked to create a PDF or TIF file with 300 dpi, featuring a logo in grayscale, measuring 1 inch (25.4 mm) width max and 0.5 inch (12.7 mm) in height max.
I'm by no means an expert, but I've done a couple of basic things in editing software like GIMP and Inkscape.
The logo that is supposed to be in the file is available as a PDF file (colored) and as an SVG graphic, I once extracted from the PDF with Inkscape.
I know how to create the PDF/TIF and make a grayscale of the logo, but other requirements are a bit of a mystery to me.
How do I make sure the logo is of a certain size in inch/mm and how do I define the DPI of the document?