I'm by no means an expert in the math behind image format conversions...
but:

When converting to TIFF-to-JPG, TIFF is uncompressed formatting and JPG is
compressed format.

When back converting, wouldn't the original quality of TIFF would be lost,
converted only to the quality of the last JPG (with degradation on each time
this process occurs)?

James Gilbert, BS, MLIS
Systems Librarian
Whitehall Township Public Library
3700 Mechanicsville Road
Whitehall, PA 18052
610-432-4339 ext: 203

-----Original Message-----
From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Roy
Sent: Friday, April 26, 2013 4:15 PM
To: [log in to unmask]
Subject: Re: [CODE4LIB] tiff2pdf, then back to pdf?

If you can stand an extrastep, Ed, there are tools to convert PDF to jpg
images, and from there it shouldn't be too hard to get TIFF output. Do a
search for "convert PDF to image" to get started. There are tools that are
not online only, which I'm pretty sure is what you're after.

Roy Zimmer
Western Michigan University


On 4/26/2013 4:08 PM, Edward M. Corrado wrote:
> Hi All,
>
> I have a need to batch convert many TIFF images to PDF. I'd then like 
> to be able to discard the TIFF images, but I can only do that if I can 
> create the original TIFF again from the PDF. Is this possible? If so, 
> using what tools and how?
>
> tiff2pdf seems like a possible solution, but I can't find a 
> corresponding "pdf2tif" program that reverses the process.
>
> Any ideas?
>
> Edward