PDF Expert enhances handwriting search and Apple Pencil Pro support
Readdle's update brings cross-document handwriting recognition and new Pencil gestures
1Major handwriting recognition upgrade
PDF Expert's latest update introduces system-wide handwriting recognition that works across all documents in a user's library. The feature indexes existing handwritten notes from any app, converting them to searchable text. This addresses a common pain point where users remember writing something but can't locate it. The recognition supports 29 languages initially, matching Apple's PKStrokeRecognizer API capabilities.
2Premium feature differentiation
While all users get basic handwriting-to-text conversion, the library-wide search capability is reserved for Premium subscribers. This creates a clear value distinction between free and paid tiers. Free users still benefit from real-time handwriting conversion within individual documents using the Text tool, maintaining core functionality while incentivizing upgrades.
3Apple Pencil Pro integration
The update fully leverages Apple Pencil Pro's squeeze gesture, mapping it to open PDF Expert's tool palette. Users gain quick access to pens, highlighters, shapes, and measurement tools without navigating menus. The implementation requires specific hardware (Pencil Pro + compatible iPad) and allows gesture reassignment if needed, showing thoughtful device-specific optimization.
4Enhanced annotation workflow
Tool palette access enables rapid switching between annotation modes with customizable pen thickness, color, and opacity settings. The update adds dedicated undo/redo buttons in document view and preserves recent/favorite tools for continuity. These refinements demonstrate Readdle's focus on streamlining professional document markup workflows.
5Visual interface refresh
Readdle expanded its Liquid Glass design language throughout the app, including sidebar, document viewer, and Presentation mode. This isn't merely cosmetic - the consistent visual treatment improves spatial orientation during extended document work sessions. The update shows attention to both utility and aesthetic cohesion.
6API-driven feature roadmap
By building on Apple's PKStrokeRecognizer, PDF Expert inherits future language support expansions automatically. This strategic API dependence reduces maintenance overhead while ensuring feature parity with system capabilities. It's a smart technical approach that benefits both developer resources and end-user experience.
7Professional use case focus
The update specifically enhances scenarios common among business and academic users - cross-referencing handwritten notes, quick document markup, and presentation preparation. Features like measurement tools and presentation mode optimizations cater to these professional workflows rather than casual use.
8Strategic premium positioning
By reserving library-wide search for paying users while maintaining robust free tier functionality, Readdle strikes a balance between accessibility and monetization. The approach demonstrates mature SaaS thinking - providing immediate value while creating natural upgrade paths for power users needing advanced capabilities.
Original article: 9to5Mac — PDF Expert enhances handwriting search and Apple Pencil Pro support