If you have a PDF with lots of black backgrounds and white text, then reversing colors can save on printer ink. To switch the whites to blacks or vice-versa, check the "Reverse" checkbox. This makes a slightly larger PDF file size, but it the best way to convert all colors systematically in a complicated PDF. It converts any scalar or vector graphics and text to raster images.
The online preview allows you to see what your modified PDF looks like with the output color of your choice.
This tool will convert pdf to black and white as it takes the luminance in each color in a PDF and switches it to a shade of grey (for example, a dark blue will change to a dark grey and a light blue will change to a light grey). Convert PDF to GreyscaleĪs this wikipedia entry tells us, greyscale images are a kind of black-and-white or grey monochrome and are composed exclusively of shades of grey. It works with all elements in your PDF including images and text. It switches all colors to black and shades of grey, depending on the settings you choose.
This tool converts a Color PDF to black and white.
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