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Re: Reduce Tiff file size Started by aallasudheer at 06-24-2008 15:07. Topic has 5 replies. LEAD Support Fo... » Developer » Image Compressi... » Re: Reduce Tiff file size

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06-24-2008, 15:07 aallasudheer Joined on 10-09-2007 Posts 30 Reduce Tiff file size Hi, .NET 15 , C# I am scanning some documents using TWAIN, and saving them in Tiff format, each file size is around 8.5mb, is there a way to reduce the file size (Same format), without losing quality? Thanks, Sudheer      Report

06-25-2008, 7:41 Yasir Alani Joined on 02-05-2007 Posts 204 Re: Reduce Tiff file size LEADTOOLS supports saving to TIF file format with a wide variety of compressions. Which one exactly are you using when you are saving your files? In general, if you want to save as black and white, a very good result can be achieved using the constant TifCcittGroup4 (saves as TIF compressed using CCITT, group 4). If you want to save as color, then this depends on 4 main factors: 1. What is the color depth (8 bits per pixel, 24, or something else)? 2. Do you want the compression to be completely lossless, or very high quality lossy? Lossy compression is better at reducing size. 3. Which LEADTOOLS toolkit do you own? Some compression types are only supported in Document Imaging toolkits or require additional purchase. 4. Do you need your images to be opened by other common viewers, or you only care about your own viewer? Some formats give good compression, but are not commonly used. Yasir Alani LEADTOOLS Technical Support    Report

06-25-2008, 12:34 aallasudheer Joined on 10-09-2007 Posts 30 Re: Reduce Tiff file size Thanks for the quick reply, we are using .NET LeadTools documents imaging suite 15. We are saving images in color. Currently we are saving in uncompressed Tiff format, color depth 8. We are looking for lossless compression. Yes, we are looking for common format. Thanks, Sudheer      Report

06-25-2008, 13:31 jigar Joined on 08-22-2007 Posts 371 Re: Reduce Tiff file size TifLzw would be the best option.  It's lossless, has good compression, and widely supported. LEADTOOLS Technical Support    Report

06-26-2008, 18:49 aallasudheer Joined on 10-09-2007 Posts 30 Re: Reduce Tiff file size Thank you, we are also thinking about PDF/A, Does leadtools support this format? Currenltly we are doing OCR/ICR/Barcode and annotations with the tiff images. Thanks, Sudheer      Report

06-27-2008, 10:49 Walter Joined on 04-14-2008 Charlotte, NC Posts 79 Re: Reduce Tiff file size Our upcoming release of LEADTOOLS v16 will support PDF/A. Walter Technical Support LEADTOOLS support@leadtools.com    Report

LEAD Support Fo... » Developer » Image Compressi... » Re: Reduce Tiff file size

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