image size is changing when saving a .tif to a .jpg

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Never had this happen before... I have a .tif that is 3413 x 2663 (calendar page) at 300ppi. When i 'Save As' to a .jpg, the size changes to 2884 x 2663. 10 of the 12 pictures are just fine. Another is changing from 3413 x 2663 to 2844 x 2663. When i look at the .jpgs in Bridge, only these two show the crop symbol and when i click on them, they automatically open in ACR. I tried a go-round and ran it through Image Processor without setting a size and leaving quality at 12 and it is still doing it. What the heck is happening?? I have tried flattening the image first. I triple-checked that i'm saving to the correct folder. I've tried restarting my computer.I've refreshed the folder and screen. I've tried deleting the .jpg and resaving it. It makes no sense. Can anyone figure this one out?
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Lisa Lehmann

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Posted 7 years ago

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Chris Cox

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Are you saving the images in Photoshop (which can't change the document size), or ACR (which saves the size you specify in ACR's preferences)?
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Lisa Lehmann

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I have the image open in Photoshop at the size 3413 x 2663 at 300ppi. I Save As a .jpg. Normally the image stays the same as the file that is open. It's only on these two! What's funny is this - when i double click on a .jpg in Bridge, it simply opens in Photoshop. However when i double-click on these two, they open in ACR.
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Chris Cox

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Photoshop itself can't save an image at a different size like that -- but ACR can, and Save for Web can. Yes, you've edited those images in ACR, so they have metadata that says they should open in ACR. If you are opening and saving them in ACR, then they are subject to the size settings you made in ACR -- check your settings in ACR.
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Lisa Lehmann

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But i am opening the .tif file directly into Photoshop, and saving it as a .jpg. You cannot open a .tif in ACR.

Like you said... Then if i open that saved .jpg from Bridge - it opens with ACR, and I can remove the crop and it turns into the size i want. OK that's good, but still don't know why it's happening. I crop files all the time with ACR or Lightroom.

If the .tif file size is X, why would it save a jpg as Y?
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Chris Cox

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You can open a JPEG or TIFF in ACR, if you have the ACR preferences set to to do that.

Again, in Photoshop - the size you open is the size you save, unless you cropped or resized the image after opening.

In ACR, what you open may not be the same as what you save because of preferences set in ACR to increase or reduce the size of the image.
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Lisa Lehmann

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Thanks for helping me with this!!!!