Private PDF color tools
PDF Night Reader
Open a PDF, enter a quiet full-window reading room, and choose a comfortable dark, OLED, warm, or original page theme.
Your PDF. Nothing else competing for attention.
Choose a file and this page becomes a focused reader. The site navigation and surrounding content step out of the way until you exit.
Processed locally in this tab. Your file is not uploaded.
When to Use Night Reader vs. File Converter
Choose the right tool for your immediate reading task.
PDF Night Reader (This Tool)
- No New Copy: The reader does not generate or download a converted PDF.
- Page-by-Page Rendering: Pages render as you navigate, so large files do not need to be converted in full first.
- Theme Switching: Switch among Comfortable Dark, OLED, Warm, and Original views.
- Best For: Reading a quick research paper, chapter, or manual on your computer without cluttering your Downloads folder.
PDF Color Converter →
- Permanent File: Re-encodes the entire PDF into a new downloadable
.pdffile. - Offline Portability: Transfer the file to offline tablets, e-readers, Kindle, or reMarkable.
- Print Support: Generate ink-saving white background copies for physical printing.
- Best For: Documents you want to keep in your permanent library or share with colleagues.
Built for Distraction-Free Night Reading
Clean interface with responsive navigation controls.
Use the toolbar buttons or keyboard shortcuts to flip through long documents seamlessly.
Zoom in for small equations or zoom out for high-level page scanning with crisp text rendering.
The reader does not upload the PDF. Exiting the reader destroys its PDF.js document instance and clears the selected file control.