"Doc Scanner: PDF Add signature" is a comprehensive PDF document scanner app available for iPhone users. It offers the functionality to scan various types of documents, receipts, photos, reports, and more. The app provides features such as mobile document scanning, easy scan with the ability to add signatures, and efficient sharing options. Users can enjoy high-resolution scans, image editing capabilities, hand-written annotations, customizable watermark, and eSign generation. With its auto edge cropping feature, users can capture documents easily with their phones and create high-quality JPEG or PDF files with signatures. Sharing options include collaboration, email, WhatsApp, WeChat, and other social networks.

The app is a convenient tool for scanning documents and pictures, whether using a flatbed scanner or a document feeder. It allows for smart cropping, auto enhancing, advanced editing, and OCR feature for text extraction. Users can easily share documents in PDF or JPEG format via social media, email attachments, or shared document links.