With Negative you can read your e-books and e-textbooks in PDFs after dark without tiring your eyes.
Negative has three working modes:
Each of the modes is activated one after the other, like on a carousel, after next clicking on the button with the eye on the toolbar. On the toolbar you will also find a field for entering the page number to which you want to jump. If no document was previously open, the program will start without a window open. Select File -> Open in the menu.
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