What's a good Android app for quickly scanning documents and saving them as PDFs using just my phone's camera?

Genius Scan - PDF Scanner is an excellent Android app for quickly scanning documents and saving them as PDFs using your phone's camera. It transforms your smartphone into a pocket scanner, allowing you to digitize paper documents, receipts, whiteboards, and more with ease. The app's smart page detection automatically identifies the document's edges, while perspective correction ensures the scan is properly aligned, even if the photo was taken at an angle.

To use Genius Scan, simply open the app and point your camera at the document you want to scan. The app will automatically detect the edges and capture the image. You can then adjust the crop and perspective if needed, apply filters to enhance readability, and save the scan as a PDF or JPEG file. You can also organize your scans into folders and easily share them via email, cloud storage, or other apps. Its speed and convenience make it a great alternative to traditional scanners, saving time and effort.