MobiPDF allows you to easily scan documents using the camera. To do so:
1. Open the app and tap the Scan to PDF button. Allow MobiPDF to use your device camera if prompted.
2. Fit your document inside the rectangular frame and scan via Camera (Scan).
3. Adjust the borders of the scan if necessary and choose a name for your file.
4. Tap the tick button to confirm the changes. Tap again to confirm the PDF creation.
MobiPDF will save your scanned document in its "Scans" folder.