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I agree, one will lose quality converting tiff to jpg back to tiff. We experienced with batch converting tens of thousands of tiffs to PDF for a newspaper digitization project. For us we found that though Image Magick does convert, the output PDF file sizes were huge to retain a decent quality PDF. We ended up using poppler 0.20.5 on mac. In separate projects we have used Adobe Bridge to batch output a tiff image per page in PDF. regards, Monica On 4/26/2013 3:32 PM, Steve Cherry wrote: > Yes, converting from JPG to TIFF would have the quality of a JPG and > (I believe) the file size of a TIFF. > > On 4/26/13 4:19 PM, James Gilbert wrote: >> 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 >