On 3 Jun, 2005, at 08:15, Eric Smith wrote:
Jan-Benedict Glaw wrote:
You didn't answer my question:-) Consider I
prepare a TIFF file that
contains (with additional tags) eg. some raw OCRed text, not
read-checked. Now I preapre a PDF from this and use gs to get the
image
back. Is my text still there?
Depends on whether the program you use to prepare the PDF file from the
TIFF file knows about those "additional tags" and does something with
them.
TIFF is another of those hopelessly cludgey formats I prefer to avoid
whenever possible. I doubt there exists any image viewer which is able
to display all the possible permutations that can be called "TIFF".
PNG is a more modern format, made after people had enough bad
experiences with other formats. It is designed to be free of any
patents or restrictions, and is generally available.
If the idea is to make something which can be useful for posterity, it
makes more sense to use a well-documented format with a rational set of
variations than something which grew as a series of ad-hoc solutions.
--
-bv