Photoshop files much larger than usual.

Community Beginner ,
Apr 11, 2017 Apr 11, 2017

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Hello,

I am having a problem with saving PSD files to my desktop. a file that used to be 150 MB is now 350 MB or so. Is there a reason my files would suddenly be saving so large? I updated Photoshop and my computer.  Thanks!

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Adobe Community Professional ,
Apr 11, 2017 Apr 11, 2017

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What does the file contain exactly?

What are its pixel dimensions and resolution?

What are the bit depth and color mode?

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Community Beginner ,
Apr 11, 2017 Apr 11, 2017

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They are design files, many layers that need to be preserved. 300 DPI, 13"x19", 3900px x 5700px, RGB, 8bit. I have many files that are essentially the same, they just sitting saving much larger in the last week.

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Adobe Community Professional ,
Apr 11, 2017 Apr 11, 2017

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essentially the same

is hardly the same as »the same« …

Drollery aside have you changed the File Handling Preferences?

Also different image content compresses differently well, so the difference you described does not seem shocking to me.

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Community Beginner ,
Apr 11, 2017 Apr 11, 2017

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Photoshop is saving files larger than it used to, and that is my problem, for instance, if I open up a file and save it again, it will save larger than it was before.

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Adobe Community Professional ,
Apr 11, 2017 Apr 11, 2017

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Can you provide a before and after file for testing?

What are your File Handling Preferences?

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Community Beginner ,
Apr 11, 2017 Apr 11, 2017

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What should my file handing preferences be for keeping files smaller?

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Adobe Community Professional ,
Apr 11, 2017 Apr 11, 2017

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Maximized Compatibility for example can increase a file’s size.

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New Here ,
Apr 14, 2017 Apr 14, 2017

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Hi

Why does my psd file take up 62mb, although it does not have layers?

Download my file from the link

Dropbox - test.psd

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Adobe Community Professional ,
Apr 16, 2017 Apr 16, 2017

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Check out the Raw Data (File > File Info).

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New Here ,
Apr 17, 2017 Apr 17, 2017

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I found a solution:
The script provided should strip the metadata in Photoshop just run the script before saving the files out. Adobe has no need to create artificial bugs.

function deleteDocumentAncestorsMetadata() {   

    whatApp = String(app.name); //String version of the app name   

    if(whatApp.search("Photoshop") > 0)  { //Check for photoshop specifically, or this will cause errors   

        //Function Scrubs Document Ancestors from Files   

        if(!documents.length) {  

            alert("There are no open documents. Please open a file to run this script.");  

            return;  

            }   

        if (ExternalObject.AdobeXMPScript == undefined) ExternalObject.AdobeXMPScript = new ExternalObject("lib:AdobeXMPScript");    

        var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData);    

        // Begone foul Document Ancestors!   

        xmp.deleteProperty(XMPConst.NS_PHOTOSHOP, "DocumentAncestors");   

        app.activeDocument.xmpMetadata.rawData = xmp.serialize();   

        }   

}   

//Now run the function to remove the document ancestors   

deleteDocumentAncestorsMetadata();

But I could not understand the source of the problem.

The new document is created correctly. But when I copy a layer from a problem file into a new document, it also takes 62mb

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Adobe Community Professional ,
Apr 17, 2017 Apr 17, 2017

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Adobe has no need to create artificial bugs.

I see a problem with the statement:

• What is an »artificial bug« and what would be a »natural bug«?

And as for this particular issue itself:

• What is the complete creating/editing history of the file – was any other application involved? I not then the issue would indeed appear to be Adobe’s making but if there was then the responsibility may not (completely) lie with Adobe.

And I am in no way trying to claim Photoshop does not have bugs, but with this issue (and I have come across it myself in the past) I am not sure how exactly It arises.

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Adobe Community Professional ,
Apr 17, 2017 Apr 17, 2017

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Adobe Community Professional ,
Apr 17, 2017 Apr 17, 2017

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Ah, yeah, forgot a classic: User error …

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Adobe Community Professional ,
Apr 17, 2017 Apr 17, 2017

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I don’t believe that this is a bug, however I can’t recreate the issue when testing in CS6 or CC2017… so there is a “valid” programming reason for why this metadata is generated and or added, however it is obviously unwanted by those that are affected by the filesize bloat!

Not sure if user error or not, there is so much metadata added by modern applications and operating systems it can be surprising what files can “say”! For example, later versions of the Mac OS store the download URL of a file downloaded using Safari as metadata in downloaded file. Potentially beneficial if one wishes to re-download the file, however potentially not what everybody may want if passing on this asset to another party.

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Adobe Community Professional ,
Apr 17, 2017 Apr 17, 2017

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I don’t believe that this is a bug, however I can’t recreate the issue when testing in CS6 or CC2017… so there is a “valid” programming reason for why this metadata is generated and or added, however it is obviously unwanted by those that are affected by the filesize bloat!

I thought if one checks Photoshop > Preferences > History Log and sets it to »Metadata« one can trigger the issue, but I cannot seem to reproduce it to the same amount as the noticeably affected files show … so it may not be a user error at all.

No matter where and how the metadata gets created originally I guess it would be nice if Photoshop itself offered an default opportunity to remove it.

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Adobe Community Professional ,
Apr 18, 2017 Apr 18, 2017

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Agreed, whether it is Photoshop (without using save for web or export which may strip out other metadata) or Bridge, there should be an easy way to remove this unwanted metadata without touching any other metadata.

I’d still like a sample image to test with ExifTool if anybody can oblige (just crop the image down if you like, it is not about the pixel content it is the metadata that is the issue), however I’ll keep trying to trigger this myself.

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Adobe Community Professional ,
Apr 18, 2017 Apr 18, 2017

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I’d still like a sample image to test with ExifTool

I the file SDron linked to in post 8 not available anymore?

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Adobe Community Professional ,
Apr 18, 2017 Apr 18, 2017

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Hmmm, that file downloads as 127kb and does not contain any DocumentAncestors metadata…

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Adobe Community Professional ,
Apr 18, 2017 Apr 18, 2017

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As expected, ExifTool can target and remove this metadata:

exiftool -r -XMP-photoshop:DocumentAncestors= '/mac os/path/to file/or/folder'

Or without creating a backup file:

exiftool -r -overwrite_original -XMP-photoshop:DocumentAncestors= '/mac os/path/to file/or/folder'

These commands are from the Mac, on Windows simply change the single straight quote/foot mark ' to straight double quote/inch marks " with the correct platform specific path to the file or top level folder.

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Community Beginner ,
Jun 02, 2021 Jun 02, 2021

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Thanks so much for this, Stephen! I was experiencing the same problem with an inflated JPG image due to rubbish raw data and was able to solve it following the instructions you provided.

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Adobe Community Professional ,
Apr 19, 2017 Apr 19, 2017

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I belatedly realised the obvious and setup a Bridge search/smart collection and found that I too (unknowingly) had my own fair share of these potentially bloated files (using the all metadata, photoshop:DocumentAncestors) find criteria.

smart-collection.png

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Enthusiast ,
Apr 18, 2017 Apr 18, 2017

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What is the image bit rate.

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