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PGM 16-bit image files are not supported

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  • PGM 16-bit image files are not supported

    PGM 8-bit image files are supported in BC3 without any problems. However, PGM 16-bit image files (at least, the P5 binary files) are not (I assume that PPM 16-bit image files are not support, either). Can we add support for them?

    Details are found here:

    The only difference is that maxval is greater than 255 and the value is stored in multiple bytes.


  • #2
    Hi Brad,

    Thanks for the suggestion.

    Can you send us an example 16-bit pgm file that you're having trouble with? You can send it to [email protected].

    If you can't send us an example file, what program are you using to generate the pgm files?
    Chris K Scooter Software


    • #3
      Hi Chris--

      Thanks for your reply. I found this thread again while trying to compare to 16-bit PGM images.

      I'm not sure if I didn't see your reply or did not send a reply. However, I can't find a record of me sending a response.

      Can we re-open this request? I have attached an example image and screenshots of how it should appear and how it appears in Beyond Compare 4. I have also sent a similar email to [email protected].

      Brad Wade
      Attached Files


      • #4

        Thanks for getting back to us with those sample files. I also tested BC4 and, despite upgrading the Picture Library to a newer version, this file type still isn't supported. With these sample files, we can investigate this support.
        Aaron P Scooter Software