Re: TIFF format (was The Creative Gouge)
Re: TIFF format (was The Creative Gouge)
- Subject: Re: TIFF format (was The Creative Gouge)
- From: John Castronovo <email@hidden>
- Date: Wed, 08 May 2013 15:30:22 -0400
- Importance: Normal
I once encountered a multi-page TIFF file which of course Photoshop won't
open. I was doubtful at first when my client told me that it had multiple
pages, but then I read up on it and learned that the format does indeed
support multiple pages in the same file. I was forced to use a Microsoft
product to get past the first page. Of course this has little to do with the
current discussion, but I thought I'd put it out there for comments.
-----Original Message-----
From: Robin Myers
Sent: Wednesday, May 08, 2013 12:49 PM
To: email@hidden
Subject: Re: TIFF format (was The Creative Gouge)
In case you are not aware of this, Adobe owns the TIFF format. They got it
when they acquired another company (if I remember correctly, Aldus). The
latest specification is TIFF 6, available on the Adobe website.
The issue with updating TIFF to use images larger than 4GB is that the TIFF
tags are a fixed 12 byte format with many of them using an unsigned 32-bit
value for the image size. It would require some clever work to make a newer
file format backward compatible yet allow for larger images. There is also
the issue of all the third party extensions TIFF has received over the last
two decades and keeping any new TIFF format compatible with them.
Robin Myers
rmimaging.com
On May 8, 2013, at 9:13 AM, Andrew Rodney wrote:
On May 8, 2013, at 10:08 AM, Jonathan Taylor <email@hidden> wrote:
Tried to save 4GB 48-bit gray color scan as a layered TIFF and ran into a
4GB limit, so a PSB file is my only option.
Correct! If you hit that limit, TIFF poop's out so you must use PSB. That
begs a new question of Adobe. Could they update TIFF or DNG (which is
based on TIFF) to support a larger image?
While your point about short term 5-10) turmoil is fair, I still think
it's an excellent bet that PSD will have strong long-term longevity.
It might. But the short history of image file formats doesn't support
that. Since PSD buys you nothing over TIFF, why not just use a format
that's without question supported in more products that read image data?
Andrew Rodney
http://www.digitaldog.net/
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