Dynamic .NET TWAIN Knowledge Base General Questions How to upgrade License Issue TWAINScan Module Pre-scan settings Troubleshooting Camera Module How to rotate video? PDF Module How to save a PDF with a specific page size Why did I get the exception “Could not open input file” when encrypt and merge pdf OCR Module How to add other languages support in the OCR Demo? Barcode Module ImageCore & Viewer Modules How to create a thumbnail viewer How to save selected images as multi-page PDF How to stamp text & icons onto acquired images in Dynamic .NET TWAIN? How to zoom image using mouse wheel? How to automatically deskew an image? Is this page helpful?