![]() GIMP’s results seem more intuitive to me: I’m not using any unusual color profiles and would expect the rectangles to match. This is a problem because I’m generating SVGs programatically, including photos I’ve processed in GIMP, converting to PDF with inkscape, and sending them to a printing place to be printed, and the colors of the vector elements aren’t matching the images (I believe the print house is using Adobe products in its printing chain.) It seems as if a very different tonal curve is being applied to the bitmap images. (I have ancient CS2 versions of Adobe software in a virtual XP machine.) I get the same result if I open it in Adobe Illustrator.īut if I open it in Photoshop, the bitmap rectangle is different (significantly lighter). ![]() Same result if I view the PDF in Okular, Firefox, etc. the two areas are indistinguishable, as expected. If I import that PDF into GIMP, the result is a single solid grey rectangle – i.e. One is a vector element with rgb(120,120,120) and the other is a GIMP-exported PNG with pixels of value rgb(120,120,120) (no color profile embedded, though it doesn’t seem to make a difference anyway.) …has two grey rectangles (overlapping a little). TLDR: is there a difference between how Adobe products render bitmaps (especially gamma/tone curve) in PDFs compared to GIMP, and if so, can anything be done on the FOSS side to emulate this? Hi! I’m trying to understand why my files are not printing as I expect, and I’ve noticed a difference between GIMP and Photoshop that I don’t understand.
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