If you want to insert multiple documents like different kinds of invoices and receipts into a single page, CamScanner provides you to create doc collage for multiple documents.
1. Tap the target document on “My Docs” page and tap the "more" button
2. Tap “Collage” to select a type for your doc collage
3. You can select a type for the collage according to the number and size of the docs you need to display on a page