Eclipse PDF – Dark Mode Reader & Notes
Extension Actions
A custom PDF viewer that forces clean, consistent Dark Mode on all PDFs.
Eclipse PDF – Dark Mode Reader & Notes is a powerful PDF viewer for Chrome that transforms how you read, study, and annotate PDFs directly in your browser.
Tired of bright white PDFs hurting your eyes? Eclipse PDF replaces Chrome’s default PDF viewer with a clean, customizable experience featuring Dark Mode, Sepia, and multiple eye-friendly themes — plus built-in tools to highlight, draw, and take notes on PDFs.
🔥 KEY FEATURES
✔ Dark Mode PDF Reader (True Night Mode)
✔ Multiple Reading Modes – Dark, Soft Dark, Sepia, Forest, Warm Gray
✔ PDF Highlighter – Highlight text instantly
✔ Add Notes to PDFs – Attach notes to highlights
✔ Draw on PDFs – Freehand drawing with color and thickness control
✔ Add Text to PDF Pages
✔ Auto-Save Annotations
✔ Fast, Lightweight PDF Viewer
✔ Works on Any PDF in Chrome
✔ No Ads. No Tracking. Fully Local
🧠 WHY ECLIPSE PDF?
Most dark mode extensions fail on PDFs because Chrome blocks styling on its default viewer.
Eclipse PDF solves this by using a custom PDF.js-powered viewer, giving you full control over how PDFs look and behave — with smooth performance and consistent rendering across all websites.
Whether you're studying, reading research papers, reviewing documents, or working with PDFs daily, Eclipse PDF makes the experience faster, easier, and more comfortable.
🎨 READING MODES
Choose the perfect mode for your eyes:
Dark Mode (night reading)
Soft Dark (reduced contrast)
Sepia Mode (paper-like reading)
Forest Mode (low strain green tone)
Warm Gray (balanced neutral tone)
Normal Mode
Designed for:
Night reading
Long study sessions
Reduced eye strain
Better focus
✏️ PDF ANNOTATION TOOLS
Highlight Text
Select and highlight important text instantly.
Notes
Attach notes to highlights for better understanding and quick review.
Drawing Tool
Draw freely on PDFs to mark, underline, or sketch ideas.
Add Text
Type directly on PDFs for comments, labels, or edits.
💾 AUTO-SAVE
All highlights, notes, drawings, and text:
Save automatically
Reload when reopening the same PDF
No manual save needed
🔒 PRIVACY
✔ No data collection
✔ No tracking
✔ No analytics
✔ No external servers
Everything runs locally in your browser.
⚡ PERFORMANCE
Fast loading
Smooth scrolling
Clean UI
Lightweight design
🎯 PERFECT FOR
Students
Developers
Researchers
Professionals
Anyone who reads PDFs regularly
Latest reviews
- Mauro Abidal Carrer
- Instant five stars after being able to open a research paper in dark mode without actually inverting the color of the images.
- Mukesh Pratap Mall
- I like the way you make cry for user. Hahaa By the way nice instruction.
- Abil
- very low resolution, especially when zoomed in
- TAAMAS Gautam
- Does what it claims but a small request, please add the ability to search/find text in the PDFs. The text can be searched in the PDF when Chrome's inbuilt PDF reader displays the file but the text can not be searched when viewing in this extension. Fingers crossed.
- Alen Kunjumon
- Just amazing. Have been using these for my daily. Easy recommendation all day !
- iSinner
- It makes the PDF text be on dark background, but it also makes the surrounding document space dark, which many other extensions do not do. Excellent. One issue it has is that it also inverts image colors.
- Seen Factor
- Works!!! Thanks
- Brendon
- Finally a pdf view that darkens the sidebars as well, instead of others doing a simple inversion. Perfect! My suggestion would be to find a way to add a customization tab to customize certain variable text colors (e.g. hyperlink text color) Keep it up :)
- Ayush Jadhav
- Finally one works good job