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Christina242841160t2v
Participant
May 2, 2022
Answered

PSD saving massive JPG and erasing metadata

  • May 2, 2022
  • 4 replies
  • 1229 views

I've recently had this problem with my photoshop where my PSD files are a smaller size like 16in by 9in at 300dpi but when I save to a JPEG it saves as 64 in by 32in at 72dpi and erases all of my metadata. I have done some research but havent come up with any solution that works.

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Correct answer c.pfaffenbichler

I use the Copyright and Contact Info as the metadata setting and when exporting it only saves what I included below when document title, author, and descirption are filled out in the psd.


@Christina242841160t2v wrote:

I use the Copyright and Contact Info as the metadata setting and when exporting it only saves what I included below when document title, author, and descirption are filled out in the psd.

Which of the settings sounds like it would maintain all metadata? 

4 replies

Stephen Marsh
Community Expert
Stephen MarshCommunity Expert
Community Expert
November 26, 2022

A couple of scripted solutions here for Photoshop or Bridge:

 

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    May 2, 2022

    This is normal and expected behavior.

     

    Export / Save For Web both strip the ppi metadata from the file. An Exported file has no ppi whatsoever, not 72, not 300, not anything.

     

    Export/SFW are intended for web/screen/mobile devices, where ppi is meaningless and irrelevant. So it's stripped.

     

    The 72 figure appears as default number when you reopen the file in Photoshop, because it needs some ppi number for other reasons. Any number will do.

     

    Ppi = pixels per inch. It's a measure of pixel density on paper. As size goes up, density goes down. It's the same file, the same number of pixels.

      Per Berntsen
      Community Expert
      Per BerntsenCommunity Expert
      Community Expert
      May 2, 2022

      Exporting will strip out all metadata, but you can choose to keep Copyright and Contact info.

      In Save for web, there's and option to keep all metadata.

      Save As / Save a copy will also keep all metadata, including the ppi value.

      Export and Save for web will strip out the ppi, because it's not required for screen viewing.

      When you open the exported file in Photoshop, it gets assigned a ppi value of 72. Photoshop has to assign a value to be able to display rulers with physical dimensions, and to display type the correct size.

      If you want to keep the ppi value, use Save As / Save a copy, which should also save much faster with a file that size.

       

      Note that digital images don't have physical dimensions, they only have pixel dimensions.

      PPI (Pixels Per Inch) is optional metadata that is used to calculate printed dimensions.

      Your 16 x 9 image is 4800 x 2700 pixels.

      4800/300 = 16 (inches), 2700/300 = 9 (inches)

       

        c.pfaffenbichler
        Community Expert
        c.pfaffenbichlerCommunity Expert
        Community Expert
        May 2, 2022

        How do you save the jpg? 

        Actually SAVE (a Copy) or EXPORT? 

        C
        Christina242841160t2vAuthor
        Participant
        May 2, 2022

        Exporting, export as and save for web mainly. I have tried multiple ways of saving and it does it every time.

        c.pfaffenbichler
        Community Expert
        c.pfaffenbichlerCommunity Expert
        Community Expert
        May 2, 2022

        You seem to use »export« and »save« as if they meant the same. 

        Under which exact conditions did saving a jpg change the image’s resolution? 

         

        As for Save for Web: Resolution is essentially meaningless, and 72ppi just is traditional. 

         

        If you don’t want to export the jpgs accordingly then save a copy instead. 

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