I’m building a full-featured document utility for Android that lets users move effortlessly from a paper bill or a gallery image to a well-organised, shareable PDF collection. The core requirements are already mapped out, but I need an experienced Android developer who can turn the checklist below into a smooth, modern interface that feels at home on recent devices. Key functionality to implement: • Capture bills or receipts with the camera, then auto-crop and auto-rotate the result • Pull multiple images from the gallery, rearrange their order, and export them as one PDF • Generate PDFs from typed or pasted text • Display PDFs natively inside the app and surface the most recently created files for quick access • Open, share, delete, rename, and automatically timestamp every PDF, storing them all inside a dedicated app folder • Merge several PDFs, compress file size, convert pages to images, reorder pages, and remove selected pages as needed • Provide a fast filename search that scans the dedicated folder Scope and expectations – Target platform: Android only (Kotlin or Java—your choice). – UI: clean, modern, feature-rich Material design components; no login or sign-up screens. – All heavy lifting (scanning, manipulation, compression) must be handled on-device; no external servers. – Deliver production-ready source code, clearly documented, with build instructions. – Before hand-off, supply an APK for functional testing and address any critical bugs found in that round. If this aligns with your skill-set, let’s discuss milestones and get started!