Dusk PDF

A local-first PDF reader with color-preserving themes, annotations, and export.

Dusk PDF is a private, local-first PDF reader built for focused reading and practical document work. Read comfortably with Original, Soft Dark, OLED, Warm Paper, and Night Blue themes. Fine-tune brightness, contrast, and color temperature while keeping document images and colors clear. Work directly inside your PDFs: • Highlight, underline, and strikethrough text • Add notes and freehand drawings • Insert editable text and images • Resize, recolor, and move inserted content • Select any page region for on-device OCR • Edit and copy recognized text • Export your changes as a new PDF without modifying the original file Privacy comes first. PDF rendering, annotations, OCR, and export are processed locally in your browser. Dusk PDF does not upload your documents to the developer and includes no advertising, analytics, behavioral tracking, or account requirement. Online PDFs are accessed only when you explicitly choose them and authorize the corresponding website. Whether you are reading research papers, reviewing reports, studying documents, or preparing notes, Dusk PDF gives you a calmer and more capable PDF workspace.