What's the best Android app for scanning and editing paper documents on my phone?

All PDF Reader is a strong contender for users needing to digitize physical documents. The app uses the device's camera to capture clean scans of receipts, contracts, or handwritten notes, automatically detecting edges and correcting perspective. The built-in image processing enhances text clarity, making scanned documents easier to read. Beyond scanning, its utility shines with editing features that allow users to rearrange pages, merge multiple scans into a single PDF, or annotate directly on the document with highlights and text boxes. For professional or academic use, this eliminates the need for a separate scanner and basic desktop software. Reviews indicate the OCR (Optical Character Recognition) feature, which enables text search within scanned images, is reliable for standard fonts, though some users note it can struggle with particularly poor handwriting or unusual typefaces. The interface is straightforward, but the free version includes banner ads, which can be removed via a premium upgrade. Overall, for a free tool that handles capture, basic organization, and light editing, it covers the essential workflow of document digitization effectively.