PDF Annotator

Seamlessly enable high-performance PDF viewing, annotating, editing, signing, and more in your apps or any mobile, desktop or server framework. Build on a modern tech stack that integrates tightly with the platform you're working on. We grow with you as your requirements change and your project evolves. Maintain a smooth viewing experience in even the most complex PDF documents with a fast and battle-tested rendering engine. Lightning-fast search delivers near-instant results to your users. Markup PDFs with highlights, stamps, and comments, draw and add notes to PDFs, or create custom annotations. Make use of many more annotation types, each with its own style controls. Apply electronic and digital signatures in PDFs to speed up paperless workflow and secure document signing. Certify, and validate certificate-based documents you receive. Automatically detect font and size of the original text content. Easily update PDF documents by changing text and images.

Drawboard PDF is the most intuitive PDF editing and markup app for Windows, iOS, macOS, android and web. Powerful PDF tools that feel good to use. Drawboard PDF – Get all the essential free. Mark up and edit any PDF with the ease of pen and paper. Drawboard Pro toolset - Upgrade to use advanced tools and Store+Share with your team. MARK UP AND DRAW All the drawing tools you need to mark and collaborate with the feel of pen and paper. INSERT Insert elements into your documents like, text, notes, callouts, signatures, images, audio notes, and more. MEASURE Take accurate measurements of elements on-page with technical measurement tools and calibration. MANAGE Local and Clouds PDFs in one place. Merge, split, reorder and compress COLLABORATE Real-time collaboration on-page in real time with instant syncing CROSS-PLATFORM Work from anywhere on any device, in real-time!