If you need a scanner for your Android phone or tablet, then you're at the right place. airScan is a free Android app that allows you to scan and save documents in the PDF format. It supports multiple input and output formats, including images, text, and PDFs.

You can use it as a standalone document scanner, but it also works as a file manager, allowing you to add, remove, and transfer documents. You can even save multiple scans in the same document and use them for filling out forms. It has a user-friendly interface and supports all major Android devices.

You can also add text to your PDFs and make them more interactive. You can even add signatures to them and use them for signing contracts or other legal documents.