In order to solve your problem, you should refer to some professional image viewing SDKs for help, I suppose. You can check its free trial first and do as its tutorials about how to create web-based image viewer or how to create Windows image viewer using C#.NET. I also suggest you choose one whose way of processing is simple and fast. It can save you a lot of time. I hope you success. Good luck.



Best regards,
Arron

Yup indeed,  I agree with Fj. What's more, I also think using code to convert a bunch of TIFF to PNG files is so complicated. Choosing a fine Image Conversion SDK whose way of processing is simple and fast will save you a lot of time. Besides, this site also offer other help to process images, it is one of many but I really love the simple way it works. Share with you. Good luck.