convert command giving unknown field with tag 326 Error

[amitgupta01]

Hi All,

While breaking multipage tiff file using convert command, I am getting following warning and tiff file is not getting splitted.

convert.exe: Unknown field with tag 326 (0x146) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 327 (0x147) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 326 (0x146) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 327 (0x147) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 326 (0x146) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 327 (0x147) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 326 (0x146) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 327 (0x147) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.
convert.exe: Unknown field with tag 59932 (0xea1c) encountered. `TIFFReadDirectory' @ warning/tiff.c/TIFFWarnings/891.

Can anyone explain when this error comes and how to fix this issue or is it a bug?

Regards,
Amit Gupta

[Bonzo]

Do you get any output as it is a warning not an error?
What is you command?
Do you have a file you can upload for testing?
What version of IM are you using?
What operating system/language are you using?

[amitgupta01]

Hi Bonzo,
The files get split into single page tiff. I am using convert b.tif c%d.tif command for the same.
The version of IM is Version: ImageMagick 6.9.3-2 Q16 x64 2016-01-23
I am using Windows 7 for the same.

Now the issue is if I directly use LibTiff command "tiffsplit.exe b.tif c.tif" It gives me the same error as mentioned but the generated files are corrupt.

[snibgo]

As Bonzo says, there are no errors in that list; only warnings. "-quiet" will suppress warnings.

Your input file may be corrupt. Can you post it to somewhere like dropbox.com and paste the URL here?