Originally Posted by Fou-Lu
It doesn't matter what you scan them as, just make it as small as possible. If you don't need to search for text on it, than png or jpegs will probably be smaller.
I thought GIF was the best for Text?
How would a GIF - or other image formats - compare to a PDF as far as readability for a receipt with text and numbers on it?
Since you won't be scanning with PHP anyways, you simply accept the upload for whatever filetypes you want. Scanning in PHP is a mess to do, so it'd be much easier to use C++, C# or even Java to do it.
You are misunderstanding me...
I am thinking of building a simple app using PHP to display a web-form to enter and display the receipt data, and then have a hyperlink which would display an image of the receipt - maybe in a pop-up window or in the original form.
(If I scan things as a PDF, then my app - or whatever - would have to launch Adobe Acrobat to display the PDF receipt which is more cumbersome, don't you think?!)