PDF Dark Mode — Night Reader for PDFs

One-click dark mode for any PDF in Chrome. Soft dark, true black & sepia themes, brightness control. 100% local & private.

Reading PDFs at night shouldn't burn your eyes. Chrome's built-in PDF viewer has no dark mode. PDF Dark Mode fixes that with one click: 🌙 THREE THEMES • Soft Dark — gentle grays, easiest on images • True Black — maximum contrast for OLED • Sepia Night — warm tint for long reading sessions 🎚 FINE-TUNE Brightness and contrast sliders, so every PDF looks right. ⚡ AUTO MODE (optional) Flip one switch and every PDF you open turns dark automatically. 🔒 PRIVATE BY DESIGN No account. No tracking. No network requests. Everything happens locally in your browser — we couldn't see your documents even if we wanted to. ✅ BUILT FOR TODAY'S CHROME Chrome recently rebuilt its PDF viewer, which silently broke older dark-mode extensions (check their reviews). PDF Dark Mode is built and tested against the current Chrome PDF viewer. Works on: online PDFs, local PDF files (enable "Allow access to file URLs"), PDFs embedded in web pages. Tip: click the extension icon on any PDF tab to toggle.