Which is the true size of an image . the one given in Bridge or the one given in PS image size ?

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I wish to send images to an online calendar company to make a personalised calendar. They said images must be less than 38MB. I resized them all in PS but when I opened then back in Bridge the new sizes were much larger.
To complicate things further I had converted them to PDF 's. In Bridge it is still giving these the original file sizes in the data menu.
I have spent hours trying to resolve this.!!! grrr. the printing company have absolutely no idea about it!!!!
then I paid money for a scam photoshop help online company. GRRRRRRRRRR!
So which is the TRUE size of each image . the one given in PS or the ONe given in Bridge. Please can someone help me.
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denise wilson

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Posted 3 years ago

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Chris Cox

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Those are two different quantities.

Bridge is showing your the size of the file on disk (with file format overhead, metadata, image compression, etc.).

Photoshop is showing you the size of the document - flattened without compression, and the size that all the data is taking up in memory. Photoshop can't show you the file size until you save the file, because it cannot know what options you will chose when saving, or exactly how the image data will compress until actually saving the file.

Sometimes people will request a certain file size (2 MB jpeg), and sometimes they will request a certain document size (4096x2160 aka 9 MegaPixel). You have to pay attention to exactly which quantity they are trying to limit: file size, or document size (and sometimes they'll specify a limit on both).