LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
December 2008
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
2008.12.17 16:22 "Re: Extracting layers from a TIFF file", by Toby Thain
On 17-Dec-08, at 10:54 AM, Gerben Vos wrote: > Mitesh wrote: > >> Our tiff files are created in Photoshop composing of several layers >> (50 +) and then saved in a tiff file. > >> Now I have to write code to separate each layer information embedded >> in the tiff file and GENERATE A SEPARATE FILE for each layer. Or in >> other words decompose the combined layers > > Layers do not exist in standard TIFF. > > Because TIFF is very flexible and extendable, it is possible that > Adobe has defined a method to store layers in TIFF. This would be > non-standard, which is perfectly fine by the way. However, I do not > know > about how they did it, and I get the impression that most people on > this > mailing list do not. > > Look on Adobe's web site, or ask them. > > It is actually quite likely that when you save a PSD to TIFF, the > layers > information is not saved at all to the TIFF. It can be; as you surmise, Adobe supports TIFF as an alternative layered format to PSD/PSB. Chris Cox of Adobe already replied that the OP obtain the Photoshop SDK as a starting point, but I would expect an interesting journey of trial, error and reverse engineering as well. :) --Toby > > Maybe we can help you a little bit further if you post the output of > the "tiffinfo" utility, applied to your TIFF, to the mailing list