Just when archivists are debating digital preservation issues and
electronic records management....along comes Xerox will a new
idea.......
Let's discuss the idea of a new paper product in which print
automatically fades away in 16 hours...will this make it to market? OR
what if it does, then what are the implications?
I guess this product does away with the need to suppress of info and
prevent accountability....or what happens if we have digital reprints
but no original?......HMMMM....
LINK: http://hardware.slashdot.org/hardware/06/09/07/2243222.shtml
Lanell
-----------
Quoting "Lucas. Arel" <[log in to unmask]>:
> If you do not have images, but only text from the original, you face the
> possibility that the rendered PDF text can be wrong, badly read by the OCR
> program, and/or not reflect changes made in handwriting to the originals.
> In many cases, optical-character-recognition rendering, done to make the
> PDF, cannot read or reflect what is in the original documents because your
> program may automatically decide what is text and what is graphics and
> improperly try to read graphics or "decide" that text is graphics and make a
> hodgepodge of your page. Trying to correct PDF or other text from
> essentially graphic documents is extremely time-consuming, frustrating, and
> sometimes impossible.
>
> We've been facing that here as we work to set up a digitization project.
> Published reports can often be simply rendered into PDF without incident,
> but mixed (graphics/text), handwritten, or hand-corrected documents can
> cause problems. One excellent example that we tried scanning first off was
> a photocopy of a carbon copy that had been hand-corrected as to one
> important mistake. The OCR-text version needed a large investment of time
> to correct due to the difficulty of reading the original, and only an image
> file could pick up the correction and make it legible. I thought it
> inauthentic to simply correct the stenographer's mistake in the PDF file.
> We do use PDFs as a text-file format. One advantage of an image format is
> that you always have an image from which to correct your text files should
> this not be possible on first pass, or should errors be discovered later.
>
> The PDF format can be used to create image-only files, but then you have no
> searchable text unless you make one image and one text file of the same
> document. (We've been unable to see and correct the OCR'd "invisible layer"
> of text in the Adobe "Searchable Image (Exact)," and we haven't been able to
> get an answer out of Adobe on how to do this.) So you would need to make two
> files of each document: one image and one text, unless there is nothing
> remarkable about the image (a published document), or no text worth
> searching in a mixed or graphic document. While you're saving two images,
> why not make one of them a TIFF?
>
> You can see in the archives of this list the discussions of the reasons for
> using the TIFF format for images. One excellent article to which I think I
> was referred from this list is at
> http://aic.stanford.edu/sg/emg/library/pdf/vitale/2006-01-vitale-digital_ima
> ge_file_formats.pdf (For those not interested in the history of imaging
> systems, start with #5, page 30, Image File Formats.") The arguments for
> TIFF include the lack of compression (in at least one variety) and its
> likely projection into the future as an imaging format. Note that there are
> different TIFF formats, and that you will need to be sure that the format
> you choose from your imaging program produces files that can be opened and
> read by other software. (We scanned upwards of 10 images before realizing
> that we were using an incompatible TIFF format.)
>
> So, yes, I agree that your best policy is to save a "master" TIFF file of
> each document image, and a PDF (if that's your chosen format) for searchable
> text. If you do only one or the other, even assuming a perfectly legible
> textual document, you have lost either the ability to search the text or the
> ability to correct the searchable text without consulting the original
> document.
>
> Arel Lucas, C.A.
> Archives/Special Collections Librarian
> Embry-Riddle Aeronautical University
> Prescott Campus
> -----Original Message-----
> From: Archives & Archivists [mailto:[log in to unmask]] On Behalf
> Of Rhue, Monika
> Sent: Friday, September 08, 2006 12:19 PM
> To: [log in to unmask]
> Subject: Digitization Question
> Importance: High
>
> We are working on a digitization project which involves scanning
> original documents from our archival collection. The web master want to
> scan these letters, correspondence, etc into PDF without creating a
> master file. From my research, we should scan all original documents in
> TIFF as the master files. Maybe the PDF can be the means in which people
> access the documents. It was stated that both the Florida Digital
> Archive and the Deep Blue repository at the University of Michigan find
> this compliance an acceptable archival format.
>
> http://www.fcla.edu/digitalArchive/pdfs/PDFGuideline.pdf#search=%22adobe
> %20acrobat%20professional%20A-1b%20standard%22
>
> http://deepblue.lib.umich.edu/about/deepbluepreservation.jsp
>
> However, I want to get the opinion of my colleagues.
>
> Thanks
>
> Nooma Monika Rhue, MLIS
> Archivist/Archival Services Librarian
> Inez Moore Parker Archives and Research Center
> Johnson C. Smith University
> 100 Beatties Ford Road
> Charlotte, NC 28216
> 704-371-6741
> Email: [log in to unmask] <mailto:[log in to unmask]>
>
>
>
> <http://archives.jcsu.edu/echo>
>
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--
Lanell E. James
Master of Science in Information School of Information
University of Michigan
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