using WIA to image scanning

Question

I had used these code to scan image in my application WIA.CommonDialog dialog = new WIA.CommonDialog(); ImageFile scannedImage = null; scannedImage = dialog.ShowAcquireImage( WiaDeviceType.ScannerDeviceType WiaImageIntent.UnspecifiedIntent WiaImageBias.MinimizeSize FormatID.wiaFormatPNG true true false); but the scanned image is at least (6 MB) in size how can I reduce the size of image without change the scanner settings ???

Mohamed Abedallah · Answer

To reduce the size of the output image try to use a different like wiaFormatJPEG as shown in the following MSDN help: https://msdn.microsoft.com/en-us/library/windows/desktop/ms630826(v=vs.85).aspx#SharedSample002 If you still facing problem with the image size consider using a programming toolkit that supports Twain WIA scanning and Image compression. LEADTOOLS supports these features and also include wide set of Image compressions for more details see this help topic: https://www.leadtools.com/help/leadtools/v19/dh/to/leadtools.topics.wia~wa.topics.howtoacquirefromthewiasource.html Disclaimer: I work for the company that created this library.