Comet PDF 4 is a lightning-fast, all-in-one PDF studio — OCR scanned pages, annotate, redact, merge, split and export to Word, Excel & PowerPoint. All in a beautiful workspace that feels like Pages.
Every pixel below is the actual Comet PDF 4 application — no mockups. Switch between views.
Clean, distraction-free start screen with a floating tool dock — just like Pages.
Page navigator, bookmarks and comments alongside a crisp document canvas.
Gorgeous dark theme that follows your system — easy on the eyes, day or night.
One menu, every power tool — split, merge, export, watermark, redact and more.
From OCR to digital signatures — Comet PDF 4 replaces a whole stack of tools.
Point Comet at any scanned page and watch words become selectable, searchable and copyable — then export a fully text-layered PDF.
Send your document straight into the Office formats you already use — layouts, tables and text preserved.
Permanently remove sensitive content, lock files with a password and verify digital certificates — all built in.
A Class XII Humanities student at Delhi Public School with a curiosity for how great software feels. Comet PDF 4 is a passion project — an exploration of design, interaction and what a modern, browser-native document workspace can be.
Free on Windows and Android — the same fast, browser-native workspace, now on your desktop and in your pocket.
OCR, edit, annotate, sign and export — everything in one blazing-fast workspace.
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