Latest questions about "tif"

I need to edit text in a TIFF file. Is it possible and if yes then how?

I have an image file in TIF format. I want to convert it into text format or in DOC format. Can any one please tell me how to convert this by using any software?

I cannot open my scanned .tif, .jpeg files in HP Document Viewer, error is "activex controls accept only fonts that are defined in graphicsunit.