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Tiff files corrupt to adobe

  
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gregorydavies

External


Since: Apr 24, 2006
Posts: 2



(Msg. 1) Posted: Mon Apr 24, 2006 7:41 am
Post subject: Tiff files corrupt to adobe
Archived from groups: comp>graphics>apps>photoshop (more info?)
I have a lot (100 000+)of tif files that I need to process with
photoshop, but no adobe product will open a single one of them. They
work for everything else, windows pic and fax viewer, win photo editor,
the windows preview thumbnail, even paint, so I know the files aren't
truly corrupt, but Adobe seems to think they are.

Can anyone offer any suggestions as to what this might be, or offer any
solution for how to pre-process these images to get them into a state
where photoshop can open them?

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Kingdom

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Since: Nov 11, 2004
Posts: 266



(Msg. 2) Posted: Mon Apr 24, 2006 3:26 pm
Post subject: Re: Tiff files corrupt to adobe [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
gregorydavies RemoveThis @gmail.com wrote in news:1145889666.369409.10200
@j33g2000cwa.googlegroups.com:

> I have a lot (100 000+)of tif files that I need to process with
> photoshop, but no adobe product will open a single one of them. They
> work for everything else, windows pic and fax viewer, win photo editor,
> the windows preview thumbnail, even paint, so I know the files aren't
> truly corrupt, but Adobe seems to think they are.
>
> Can anyone offer any suggestions as to what this might be, or offer any
> solution for how to pre-process these images to get them into a state
> where photoshop can open them?
>
>

Try renaming the file to .tiff instead of .tif and see if it opens

Could also be that it's not LZW compression so convert from TIF to TIF
using another program. Saving the file again will rewrite the TIFF header
and may help, ie make a new back up in another program.


--
'Mirror mirror on the wall who is the prettiest of them all?'
'Snow White you dirty bitch and don't you forget it!'

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gregorydavies

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Since: Apr 24, 2006
Posts: 2



(Msg. 3) Posted: Thu Apr 27, 2006 12:14 pm
Post subject: Re: Tiff files corrupt to adobe [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
This is so emberasing... not only to me but to Adobe for not using deep
file type checking. They were actually bitmaps named .tif. I tried
changing the file extension to everything I could think of, but never
tried .bmp for some reason.

I found this out when I tried to open them in IrfanView. It advised me
that the extension was incorrect, so I fixed that, and everything
worked. They were tifs when they were stored in the database, but I
think the updates to the extraction program must have decompressed the
images as it extracted them, so it didn't work the same as it did last
time.

Thank you everyone for your help. I actually thought it was a
compression problem for a while too, but I found the right solution
before I started exploring the possibility of compression.
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