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Thread: Batch Converting LZW Compressed TIF Images

  1. #1

    Default Batch Converting LZW Compressed TIF Images

    HI there,

    I have a folder with a ton of tiff files in various subfolders. I want to batch convert only the tiff files that have the compression of LZW. Does IrfanView do that?
    Last edited by Bhikkhu Pesala; 04.04.2019 at 05:57 PM. Reason: Clarified thread title

  2. #2
    Moderator Enterprise User Bhikkhu Pesala's Avatar
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    Default

    Not possible as far as I know.

    You can only convert all of them using the same compression method (or none). IrfanView can detect the file type after it opens a TIF file (See the Image Information dialogue), but the Batch dialogue does not detect the file type when adding filenames to the list of files to convert.

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  3. #3

    Default

    How about converting using the following command but intake the full path and filename to the tif file but save it back to its location in the text file?

    text file c:\list.txt contents:

    c:\test.tif
    c:\test2.tif

    command:
    i_view64.exe C:\list.txt /tifc=4 /convert= ??? (im stuck how to tell irfan to overwrite the originals)

  4. #4

    Default

    Having an issue as to how to tell the program to overwrite the originals so there isn't a path i want to provide

  5. #5

    Default

    any help please? much appreciated!

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