PDF Dark

Yes — free and without installing anything. Drop the PDF on this page to read it on a dark background right away, or invert its colors and download a copy with the dark theme written into the file.

No. PDF Dark runs 100% in your browser. We literally don't have a server that receives your file.

Download a dark-themed copy first, then print it from any reader. Because the colors are written into the file itself, the print output is dark too — not just the on-screen view.

Yes. Safari on iOS can open PDFs directly on this page—no app install needed, and the file still never leaves your device.

Extensions only restyle the page while it's open in your browser — close the tab or hand the file to someone else and it's bright again. PDF Dark rewrites the actual PDF: text and background are recolored into your chosen theme, images are handled per your choice, and the result is saved back into the file. The dark theme stays with the PDF wherever you open it.

Yes. Scanned pages are treated as what they are — images — and inverted uniformly, so handwriting and scanned text become light-on-dark automatically. Even old yellowed scans normalize to your theme background.

Convert the PDF to dark mode here and pick OLED or Midnight—both turn the white background into pure or near-pure black so your eyes don't have to fight a bright page in a dim room. Text inverts to light tones; images are handled smartly so photos don't turn into negatives.

Only if you want them to be. By default each image gets the best treatment automatically: photos keep their original colors, white screenshots and diagrams are inverted to blend with the page, and bright colorful images get a gentle dim. The Images toggle in the toolbar (next to the themes) lets you force everything Original or everything Inverted.

Yes. The OLED theme renders the background as pure black (#000) and text in light tones — near-white for regular body text — which is the most aggressive dark mode for PDFs. You can also download the PDF with that black background written in.

Not exactly. Acrobat has its own in-app dark mode, but it only affects how you see the PDF inside Acrobat—the file itself stays light. PDF Dark produces a real dark-mode PDF file you can open in any reader (Acrobat, Preview, browser) and it stays dark.