: Photoshop Action for save mysteriously increase file size I record a Photoshop action to save file as png format. It works except one thing: file sizes differ when I do manually save and when

I record a Photoshop action to save file as png format. It works except one thing: file sizes differ when I do manually save and when I play the save action (recorded exactly the same steps in manual save). For example, in manual save the file size is 10KB, in action save it becomes 40KB.

I tried several different files and got similar results. Action save always increases file size by around 20-30KB, which matters to me since I am doing iOS dev and keeping file sizes minimum is essential.

Any idea what cause the file size difference, and more importantly, how to get rid of it?

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@BetL875

I found the problem: Mac Finder (and Adobe Bridge on Mac) don't update file size correctly.

Here is how I get to that conclusion. Firstly I use ImageOptim to reduce file size, and discover that size shown in ImageOptim is different from size shown in Finder. I thought Finder might needs a refresh. So I relaunch Finder, delete .DS_Store, yet nothing changes. Which size is correct?

As final resort, I copy files to my Windows laptop and check sizes over there. Truth be told: Windows size match ImageOptim size. Mac is wrong!

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: Photoshop Action for save mysteriously increase file size I record a Photoshop action to save file as png format. It works except one thing: file sizes differ when I do manually save and when

More posts by @Bryan765

: Typesetting tools other than LaTeX I come from a Computer Science background and i'm used to write my reports/documents in LaTeX. They look great and things like Hyphenation and kerning (using

: Run Illustrator script on multiple files Is there a way to make an Illustrator script run over all files in a certain folder and perform operations on these? I am using CS5 on mac.

: Photoshop: link layers vs group layers I googled but found nothing satisfactory. What's their difference? What's the situation respectively to use one over the other?

: Photoshop Reducing File Size by Hiding Layers I've recently learned that hiding Photoshop layers will reduce the file size. After searching around the Adobe forums I can't find anything stating

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