15. A computer program product for document analysis, the computer program product comprising a non-transitory computer-readable storage medium having program code embodied therewith, the program code executable by at least one hardware processor to: receive a digital document for printing; analyze text in the digital document, to identify a text segment referring to a figure of the digital document; map said text segment to said figure; identify, in said text segment, reference to one or more non-grayscale colors of said figure, to determine a level of importance of said one or more non-grayscale colors to legibility of said figure; and transmit said digital document to one or more printers in accordance with the level of importance.
15. A computer program product for document analysis, the computer program product comprising a non-transitory computer-readable storage medium having program code embodied therewith, the program code executable by at least one hardware processor to: receive a digital document for printing; analyze text in the digital document, to identify a text segment referring to a figure of the digital document; map said text segment to said figure; identify, in said text segment, reference to one or more non-grayscale colors of said figure, to determine a level of importance of said one or more non-grayscale colors to legibility of said figure; and transmit said digital document to one or more printers in accordance with the level of importance. 18. The computer program product according to claim 15 , wherein said monochromatic printer is a grayscale printer.