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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
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
Image Magick can do it, you need Ghost Script installed though. I'Ve done
this with multi layer TIFs and multi page PDFs.
-mike
___
Michael Friscia
Manager, Digital Library Programming Services
Yale University Library
(203) 432-1856
On 4/26/13 4:08
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
Imagemagick's convert will do it both ways.
convert a.tiff b.pdf
convert b.pdf a.tiff
If the pdf is more than one page, the tiff will be a multipage tiff.
Aaron
--
Aaron Addison
Unix Administrator
W. E. B. Du Bois Library UMass Amherst
413 577 2104
On Fri, 2013-04-26 at 16:08 -0400,
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
Hi, you'll notice from the language you use to describe your use case,
that you use the word convert to describe what you're doing to the
original TIFF images. Once you're done producing a derivative from those
TIFFs, the only way back to the original TIFFs is to go back to the
actual originals.
This works sometimes. Well, it does give me a new tiff file from the pdf
all of the time, but it is not always anywhere near the same size as the
original tiff. My guess is that maybe there is a flag or somethign that
woulf help. Here is what I get with one fil:
ecorrado@ecorrado:~/Desktop/test$
Actually, I'm mistaken. It didn't ever work. :-(. I do get a tiff, but not
the original. I looked at the wrong files.
On Fri, Apr 26, 2013 at 5:11 PM, Edward M. Corrado ecorr...@ecorrado.uswrote:
This works sometimes. Well, it does give me a new tiff file from the pdf
all of the time, but it
What's your use case in this scenario? Do you want to provide access to the
PDFs over the web or are you using them as your archival format? You
probably don't want to use PDF to achieve both objectives.
Ethan
On Apr 26, 2013 5:11 PM, Edward M. Corrado ecorr...@ecorrado.us wrote:
This works
Hardy,
You may very well be correct, but some programs claim to keep the original
image data unaltered [1], so I was hoping that was the case (basically it
would put some sort of wrapper around the tiff. Tiff2pdf on my Ubuntu box
seems to keep the file sizes very close when I use it so, I'm
On Fri, Apr 26, 2013 at 5:29 PM, Ethan Gruber ewg4x...@gmail.com wrote:
What's your use case in this scenario? Do you want to provide access to the
PDFs over the web or are you using them as your archival format? You
probably don't want to use PDF to achieve both objectives.
The problem I
Hi, Edward:
After reading through the string of messages and the options that you list
below, I think that #3 is your best option. It seems to best fall in line with
good archiving practices as I understand them (have one copy for public use and
another for archival purposes). If you really
Although I do find the persistent myth of PDF/A as an archival format
amusing.
Under very specific circumstances it can be, but its rare for those
circumstances to be deliberatively met.
And for many languages it is impossible to use pdf for archival purpuses
ever.
It is the nature of PDF.
On
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