pdfdark.com – view pdf's in "dark mode" all on client
I wanted a way to read PDFs at night and not burn my retinas out so I whipped together this super simple website with Claude to solve my problem. It uses Mozilla's pdf.js library to load and render a PDF and then inverts the colors with CSS. It has basic controls like zoom in, zoom out, reset zoom, previous and next page. There are some keyboard shortcuts that you can find by toggling the "q" key.
pdfdark.com – view pdf's in "dark mode" all on client launched on March 3, 2025 with 22 votes, #814 of 7,215 launches that month and more than 90% of that year's launches.
In plain words
pdfdark.com is a web-based PDF viewer that applies dark mode by inverting colors, designed for comfortable nighttime reading. It uses Mozilla's pdf.js library to render PDFs entirely in the browser and offers basic navigation controls including zoom, page navigation, and keyboard shortcuts. The tool processes all files client-side without uploading documents to a server.
written from the facts on this page · September 2026
Does a similar job
all alternatives →
Dark Reader extension – Dark mode for every website2018 · darkreader.org · ▲369Enable dark mode (night mode) on all websites
DarkMode Document Viewer2025 · pdf-dark-mode.vercel.app · ▲15Read PDFs & books at night with dark mode.
PDF Inverter for macOS (In Golang) Darken Your PDFs2020 · github.com · ▲58darken (or lighten) a PDF. Contribute to rootVIII/pdfinverter development by creating an account on GitHub.
Veil – Dark mode PDFs without destroying images, runs in the browserMar 2026 · veil.simoneamico.com · ▲100Hi HN! here's a tool I just deployed that renders PDFs in dark mode without destroying the images. Internal and external links stay intact, and I decided to implement export since I'm not a fan of platform lock-in: you can view your dark PDF in your preferred reader, on any device. It's a side project born from a personal need first and foremost. When I was reading in the factory the books that eventually helped me get out of it, I had the problem that many study materials and books contained images and charts that forced me, with the dark readers available at the time, to always keep the…
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