If you're looking for a versatile and easy-to-use scanning tool for your Android phone, Document Scanner - PDF Scanner by Voice Text should be on your list. This free app turns your phone camera into a powerful scanner that can digitize any physical or digital document, including ID cards, reports, invoices, legal documents, and more.

One of the key features of this app is its ability to convert scanned documents to PDF files. You can scan multiple documents and merge them into a single PDF file with just one tap. The app also includes a PDF viewer that allows you to zoom in and out of PDF files and share them with others.

In addition to the PDF scanning and viewing features, this app also includes a QR code scanner for all QR code formats, an image text extractor, and a PDF compressor to minimize the size of large PDF files. You can even add a digital signature to your PDF files using the app.

Overall, Document Scanner - PDF Scanner is a comprehensive and reliable scanning tool that can help you save time and money by eliminating the need for printing and physical document storage. Whether you're a student, employee, or business owner, this app is a must-have for your phone.