An intuitive and focused reading environment that puts ideas at the center.
Highlight, markup, and take notes on your documents to flow seamlessly into deeper understanding.
Drag pages, highlights, and notes onto an infinite canvas. Organize, cluster, and synthesize your readings.
Keyboard shortcuts, fluid navigation, and design that stays out of your way for an ergonomic reading experience.
Built to read PDFs comfortably at night or day. Toggle between light and dark mode with a click.
Build your personal collection. Organize, search, and rediscover your documents effortlessly.
Load your files instantly and handle massive PDFs without lag.
Sync your documents across all your devices. Keep your highlights, notes, and studios in sync seamlessly.
Shadow Reader is just getting started. We're turning this into a thinking workspace built for the future.
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“OMG!!! Thank you so much, I'm really sensible with brightness and white backgrounds but I also love to read on my computer so, you just saved my eyes!!!”
“I love this and you. Thank you!”
“It's fucking brilliant!”
“This is amazing. Much better than the native Chrome PDF reader.”
“This is incredible! Thank you!!”
“amazing thing man. gonna use all the time from now on”
“THANK YOU! This is amazing. Seriously, thank you so much.”
“this works so well! thank you! <3”
“This is amazing, great work!”
“Thanks man, you saved my eyes with this!”
“This is exactly what I was looking for. Good stuff!”
“very cool. and very simple to use!! huge respect for not having some stupid drawn out sign up or uploading process. literally took me 5-10 sec from clicking your link to looking at an uploaded PDF!!”
Yes. Files are opened locally on your browser by default unless you choose to upload them to your library. Notes, highlights, and studios are stored on the cloud to sync across devices. Review our privacy policy for more details.
The Studio is a canvas where you can organize highlights, notes, and pages spatially. It’s like an infinite whiteboard for your reading, letting you connect ideas visually.
You will soon. Shadow Reader has been designed for the web, but we're working on offline support to allow you to read your files without an internet connection.
Yes, you can create folders, import multiple PDFs, and manage them with a clean library interface.
Get started with the basics
Unlimited power for knowledge workers