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Advice on file format

Mar 9, 2016 at 12:41 PM

I need to develop an application where I read text from invoices. What will be the best suited file format for this scenario when I convert pdf-invoices to images? Should I go with .gif? These invoices is basically text on a white background. I'm also thinking of using grayscaling to reduce file size and improve readability, does this make sense? Any advice is appreciated.
Mar 10, 2016 at 6:28 AM
I think you can better ask your question here: Most of the time when people talk about scanned images they use TIFF images when Group4 compression but I have no idea why they do that.