DPI in JPGs and printing

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Some (but by no means all) programs use the DPI setting inside the JPG file to know how big to print the file.


RansenScan saves the DPI setting it used to scan the image inside the JPG file, so printing software knows how big the original was. This way it can print the JPG file at the same size as the original scanned file.


To find out the saved DPI use the Windows explorer and right click on the JPG image. Then click at the properties menu item and you'll get a dialog which tells you more details about the JPG file. The exact dialog is different from operating system to operating system (Windows Vista vs Window 7 for example).


See also "What DPI should I use?"