Inky is a fast and powerful PDF reader and editor for Windows. Read, annotate, sign, organize, merge, split and convert your PDF documents with a clean, Fluent‑style interface designed for Windows 11. Smooth PDF reading with crisp rendering for textbooks, research papers and professional documents. Highlight, underline and write notes with ink annotation to keep your PDFs organized and easy to review. Create and add signatures to contracts and agreements directly inside your PDF files. Insert images such as logos, photos and scans to build polished reports and presentations. Organize your library with customizable tags, filters and a convenient Recent documents view. Merge multiple PDFs into a single file or split large documents into smaller parts in just a few clicks. Convert Word, Excel, PowerPoint and image files (JPEG, PNG, TIFF) to high‑quality PDFs. Modern Fluent Design interface with dark theme, smooth animations and full‑screen reading mode. Premium features unlock multi‑window support, Office document viewing and the ability to move tabs into separate windows for advanced multitasking.