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carolnitra
January 8, 2026
Question

Smart Object changes scale unexpectedly when replacing artwork

  • January 8, 2026
  • 2 replies
  • 351 views

Hi,

My name is Carolina, and I work with Photoshop mockups for fabric and apparel printing.

I am experiencing an issue that I have not been able to find clearly documented, so I decided to open this topic. Due to a high volume of files, our workflow relies heavily on Photoshop Smart Objects to standardize and automate artwork placement across multiple mockups and artboards.

The problem is that, occasionally, when replacing the artwork inside a Smart Object, the object automatically changes scale, even though the same source files, Smart Object structure, and alignment rules are being used. This does not happen in all mockups, only in some of them, which makes the behavior inconsistent and difficult to predict.

For example, using the same PSD mockup and the same Smart Object, a placeholder vector with a fixed size (10 inches) aligns correctly in most garments. However, when replacing it with the final logo, which is also vector based, the resulting scale appears significantly larger in certain mockups, breaking visual consistency across the set.

The Smart Object structure includes reference and margin shapes, some of them invisible, which are required for alignment and cannot be removed. These reference objects seem to affect the bounding box calculation and may be influencing how Photoshop recalculates scale when the Smart Object is updated. Even when the replacement artwork maintains the same dimensions, the final rendered size is not always consistent.

We first noticed this behavior around mid December 2025, approximately December 18. The workflow was previously stable, and no changes were made to the source files at that time, which makes me wonder whether this could be related to a recent Photoshop update or internal change.

Manually resizing each file is not a viable solution, as Smart Objects work correctly in most cases and are essential for this automated workflow across dozens of files.

Has anyone experienced similar Smart Object scaling inconsistencies in Photoshop, or knows how to prevent Photoshop from recalculating scale when replacing artwork inside Smart Objects?

Thank you in advance.

2 replies

Conrad_C
Community Expert
Conrad_CCommunity Expert
Community Expert
January 9, 2026

I’m just chiming in because I think I saw a problem like this today. Unfortunately, it seems to be difficult to reproduce. 

 

I wanted to add some type and graphics over three video files. I created a layered TIFF document, placed the first video file, and added the graphics. The second and third versions would be very similar, so I duplicated the document, selected the video layer, and chose Layer > Smart Objects > Relink to File to replace it with the second video file. 

 

The replacement video file appeared mysteriously smaller on the canvas than the first. This should not have happened because they were captured one after the other, without changing settings. I switched to the desktop and double-checked the width and height of the screen recordings and they are all 2032 x 1322 px, so the smaller size was not based on a width and height difference. Next I switched back to Photoshop and looked at the dimensions of the replacement video Smart Object, and notice that the scaling percentage had mysteriously been shrunken down to an odd percentage like 23.46% (that’s not exact, I didn’t write it down). It should have stayed at 100%. But, I tried it again just now and it worked fine, which is why I think it’s difficult to reproduce. 

 

Possibly related but not sure: I said I had three versions. When I duplicated the second document to make the third version, Photoshop ended up hanging while reading the replacement file. It went into “Application Not Responding” while there was a stuck progress bar that said it was updating the Smart Object. Another strange thing about this is although Photoshop hung and was force quit a couple of times as I tried again, neither macOS nor Adobe displayed a crash reporter dialog box, so I was unable to submit one. I eventually fixed this by forcing Photoshop to quit, deleting the document copy that crashed Photoshop, and making another duplicate of the document that this time worked fine. 

 

Again I don’t know if the Photoshop hangs in the last paragraph are related, but I only mention it in case it helps indicate what’s going on. Hopefully, it is not evidence that there is a problem that might compound until the application can’t handle it. 

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    carolnitraAuthor
    January 9, 2026

    Yes — it’s extremely frustrating.


    I’ve tried to identify a consistent rule or trigger, but so far I haven’t been able to define any reliable criteria. Neither AI analysis, forum discussions, nor repeated testing have revealed a clear pattern.

     

    Each piece I work on is a different PSD containing multiple artboards. What makes this particularly difficult is that the issue is inconsistent: on some days, certain artboards fail to cooperate; on other days, different artboards exhibit the same behavior.

     

    This irregularity across files and artboards makes it very hard to distinguish a predictable pattern or root cause, even when using the same Smart Object structure and workflow.

    Stephen Marsh
    Community Expert
    Stephen MarshCommunity Expert
    Community Expert
    January 8, 2026

    Raster smart objects are sized using their resolution PPI value. I'm guessing that the resolution value under Image > Image Size is different between these smart objects.

     

    For vector objects, there might be a stray point changing the expected bounding area.

     

    I would expect to have a larger bounding object used for consistent sizing across all designs. Example, if all designs were  smaller and centred on an A3 page setup, then I'd use a A3 sized locked path for consistent bounds.


    Are the files .ai or .eps or .pdf etc?

    Can you provide example files for testing?

    C
    carolnitraAuthor
    January 8, 2026

    Hi Stephen, thank you for the explanation.

     

    I usually work with multiple artboards within the same PSD. As shown in the image I posted, when updating the same Smart Object with the same vector artwork, some artboards automatically increase the Smart Object scale (%), while others remain correct — with no manual transform applied. This happens inconsistently across artboards within the same file. The Smart Object content is always vector-based and includes reference/margin shapes (some hidden).

     

    I’m attaching one of the PSD files where this behavior occurs, in case it helps determine whether this is expected behavior or a regression.

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