Loading...
Loading...
Convert any PDF to dark mode, sepia, or a custom background color. Easier on the eyes for night reading. Free and private.
Select any PDF up to 25MB. Your file is processed entirely in your browser.
Pick Dark Mode to invert colors, Sepia for a warm tone, or Custom Background to tint with any color you choose.
Click "Apply Color Mode" and download the transformed PDF ready for reading.
Each page is rendered to a canvas and the pixel colors are inverted: bright whites become dark blacks and dark text becomes light. This makes the PDF comfortable to read in low-light environments.
Yes. Dark Mode and Sepia preserve contrast, so text remains legible. Custom Background blends your chosen color with the page content, so best results are with lighter colors or full inversion.
Each page is re-rendered to a JPEG image. At 2× quality the result is sharp for reading. The output file will not have selectable text, as it is now image-based.
Yes, 25MB for the input file. The output file size depends on the render quality selected.