Photoshop: I have a problem with large size of PSD or JPG files with History Log turned on.

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  • Updated 2 years ago
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I noticed one of my image file only contains
small image with one layer but its size is over 30mb. So I googled to solvethis and found accumulation of Metadatahistory is reason of this problem. When PSD files size is once become largewith this problem, it never shrink even if change it to JPG files or copy itafter merging.

For now, I know how to fix JPG files withthis problem. Change JPG to PNG file, which does not save Metadata history, andchange that PNG file to JPG again.

However, I don’t know how to fix PSD filewhich contains unnecessary Metadata history with large size. How can I deletethis unnecessary Metadata history? Only way is using application could deleteMetadata? Photoshop has no function for this kind of problem?

It will be very pleasure if you guys give me some advice. Thank you.
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파오후

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  • confused

Posted 2 years ago

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Max Johnson, Champion

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I guess you could try this to strip out EXIF metadata? http://www.steelbytes.com/?mid=30
(Edited)
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파오후

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Thank you for your advice.
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Paddy Boocock

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Use Bridge CC to Create a metadata template that has at least one metadata field
(Bridge/Tools/Create Metadata Template).  
You have to specify at least one metadata property in the template, although it can be empty.
Give the template a name and save it.
Open your PSD file in Photoshop.
Show Info with File/File Info menu or shortcut
Drop down the template dropdown at the bottom of the File Info Dialog
Choose your saved template
Choose "Clear existing and replace with template properties"
Save the file.

This will have cleared all the metadata including the Photoshop history.

Your camera data and GPS data should be preserved, but all editable metadata will be cleared, so exercise caution and preserve any other metadata you want so you can edit it back it. (You can also add static values to the metadata template and use the option to Replace metadata from Template values when you assign the saved template.

Going forward, if you don't use the edit history metadata, you could also just disable the History Log in Photoshop Preferences and then nothing will be recorded in future, but this won't delete existing history in an existing image.

Or if you want to keep it, but not in the metadata, choose the History Log Option to save the Edit History to a text file instead of to image Metadata. (Your text file could get quite large).
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Max Johnson, Champion

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That is fascinating. I need to assess some of the PSDs I have that are large now. Thanks!
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파오후

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Thank you for your advice. It was really helpful.
(Edited)
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Do you need to record the Photoshop history as metadata? If no, disable it in preferences. If you want to export a JPEG without metadata, use Save For Web and choose "None" or "Copyright only" to not include metadata with the derivative JPEG file.
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파오후

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Thank you for your advice.