Welcome to PDF Dark Mode

Plan: Free

Your extension is ready. Enable local PDF access below, then unlock Pro for extra reading modes and per-site rules.

Upgrade to Pro View Project

Already purchased? Open the extension popup and click Have a license? Activate here.

What you get with Pro

Sepia mode for warm long-session reading
AMOLED mode for deeper blacks
Per-site allow/block rules for custom behavior
Automatic license validation in the background

Enable extension access for local PDFs

Complete these steps once so PDF Dark Mode can work on file:// PDFs.

Step 1: Open Extensions tab

Step 2: Click Manage extensions
Step 3: Click Details under PDF Dark Mode
Step 4: Turn on Allow access to file URLs