m80116
Second Officer
Flight distance : 3264131 ft
Italy
Offline
|
72 dpi is pretty much the de facto standard throughout the imaging world and it only makes sense to change it when you're dealing with absolute measures.
When you change the dpi setting you basically change how dense the pixel count should be in a unit of length. Many graphics programs (especially product bundled) disregard the DPI setting for printing.
If you really need to change the dpi value you could try GIMP... In 25 years of personal prints I've never had to modify more than one picture at once (in a while) and when I've done it wasn't likely a pano but some vector graphic file or some bitmap graphic that I needed to print into a certain size, and the dpi ended up where it was needed... say 80,2 or 458,9 numbers like that.
Anyway... if you really start from scratch and want to have an A4 print set for 300dpi (that equals to 2480 x 3508 px) you really need some editor like GIMP or Photoshop that supports the dpi settings.
-
Footnote:
dpi: dots per inch, how many dots will be displayed or printed in one inch.
pixel: the smallest unit where a unique intensity value of light can be stored.
To most of us, a hue resulting from a mixing of 255 values of primary colour lights.
Pure red for instance is: red 255, green 0, blue 0; grey is red 128, green 128, blue 128;
pure white is red 255, green 255, blue 255; and finally black is 0,0,0 for each of the primaries.
|
|