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tonypatterson1
Participant
September 26, 2017
Answered

Saving TIFF file BYTE order IBM Pc

  • September 26, 2017
  • 2 replies
  • 6179 views

I just installed Adobe CC , photoshop and LR. I have installed it on my laptop and it works as expected . On my desktop PC , a Dell PC , after finishing a edit in photoshop upon saving the save defaults to BYTE order Macintosh and I have to choose IBM Pc every save before saving. Is there a way to have it default to IBM PC. I have after selecting save TIFF and selected IBM PC closed the program hoping it would save the setting but next time it reverts to saving as macintosh. Thank you

    This topic has been closed for replies.
    Correct answer Conrad_C

    I'm a little uncomfortable with this answer because I forgot to set the byte order to IBM a couple times and later found a couple images in LR that could not be displayed.  Maybe that's just a coincidence but it does make me worry.     


    @Pacoh wrote:

    I'm a little uncomfortable with this answer because I forgot to set the byte order to IBM a couple times and later found a couple images in LR that could not be displayed.  Maybe that's just a coincidence but it does make me worry.     

     

    It probably is a coincidence, due to Jeff Arola’s answer (the one marked Correct) — that any reasonably recent image editing application, from most developers, should read TIFF files of either byte order without a problem. And by “reasonably recent” I mean versions released in the last 15 to 20 years at least. It’s certainly true that Adobe photo applications recognize both byte orders, so there is no wrong way to set it now. I totally stopped paying attention to that setting.

    2 replies

    T
    Test Screen Name
    Legend
    May 1, 2022

    Ironically, Macs stopped using that order 16 years ago, in 2006. They now use the same order as Windows, because that's what Intel chips use, and M1 chips are the same. But this isn't relevant in any practical way; it's just two choices that apps need to support. 

      gener7
      Community Expert
      gener7Community Expert
      Community Expert
      September 26, 2017

      I would recommend resetting your preferences. Then see if that fixed it.

        T
        tonypatterson1Author
        Participant
        September 26, 2017

        I will try that, Thank you

        Pacoh
        Pacoh
        Known Participant
        April 30, 2022

        Even though photoshop should probably remember those settings, now a days that setting makes no difference.

         

        It was only in pretty old software that read tif files that the setting mattered.

         

        Chris Cox, a photoshop engineer, wrote an explanation about it somewhere on these forums

         

        Edit: Found it:

         

        Re: Tiff byte order in PS CS5

         

        the intial question

        'i'd like to have the default byte order setting to be Mac and not IBM when saving Tiff files in PS CS5. It seems that it's always defaulting to IBM, is there a way to change that?

         

        the reply by Chris Cox

        "There is no way to change the default. But for most software (and all correctly written TIFF code) the byte order doesn't matter.

        The default was changed to IBM/LittleEndian because that is the byte order for Intel/x86 processors and offers a slight speed advantage when opening and saving.

        Historically, Macintosh (68K and PPC) used BigEndian byte order - which is far easier to read, debug, and work with, but isn't the byte order of current desktop processors."


        I'm a little uncomfortable with this answer because I forgot to set the byte order to IBM a couple times and later found a couple images in LR that could not be displayed.  Maybe that's just a coincidence but it does make me worry.     

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