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Photoshop says filesize will be 1.938k

Photoshop says filesize will be 1.938k

But actual filesize after saving is 2.96KB

enter image description here

Any ideas why this is happening?

Update 1: To clarify, I'm talking about File > Save for Web

Update 2: I asked a friend with CS3 to do this and he was able to have exactly the same filesize. So this seems to be a CS5 bug.

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up vote 1 down vote accepted

Photoshop CS5 is not including the Metadata in the calculated size of the file.

If you set: Metadata: None you should get an output file of the specified size.

You will need to manually allow for the size of your "Copyright and Contact Info" metadata.

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Amazing... I was losing hope and would revert to CS2 then you came... LOL thanks! BTW what's Metadata for and how do you usually access it supposed you set it? – IMB Nov 28 '11 at 17:56
@IMB metadata is any data that is not actually part of the image itself. It includes things like camera settings, time/date tags, copyright notices, etc. You can view most (but not all) of the metadata by opening the file in Photoshop and then choosing File > File Info... – Mr.Wizard Nov 28 '11 at 18:01
Alright thanks again! – IMB Nov 28 '11 at 18:34

Photoshop file size is printed image size in Photoshop format or aproximated disk size (real size can depend on OS, compression and other factors) as you can see in adobe documentation.

Document Sizes

Information on the amount of data in the image. The number on the left represents the printing size of the image—approximately the size of the saved, flattened file in Adobe Photoshop format. The number on the right indicates the file’s approximate size, including layers and channels.

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It's not Document size I'm talking about but the size of the final output when using "File > Save for Web..." – IMB Nov 18 '11 at 6:11

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