Saving at a specific file size

New Here ,
Mar 19, 2019 Mar 19, 2019

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I have a large image that is greater than 25MB.

I need to save my image as a PNG at 25 MB.

How can I do this?

I tried changing the image dimensions until i got the "Document Sizes" at the bottom of my screen to "24.9M", thinking this was in MB, however, after saving the image, right clicking, and checking the file size in Properties, it was actually 10MB.

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Adobe Community Professional , Mar 19, 2019 Mar 19, 2019
OK. That makes sense. Do they have maximums on the dimensions of the image in terms of width and height? If they do, and you are already honouring that, then set all the quality settings to their maximum values and don't worry if the file size comes in well under 25Mb.

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Adobe Community Professional ,
Mar 19, 2019 Mar 19, 2019

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Can I ask why you are trying to hit a very particular file size? Cheers.

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New Here ,
Mar 19, 2019 Mar 19, 2019

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I am trying to upload to my wix website and the max file size is 25 MB.

I want it as large of a resolution as possible.

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Adobe Community Professional ,
Mar 19, 2019 Mar 19, 2019

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OK. That makes sense.

Do they have maximums on the dimensions of the image in terms of width and height? If they do, and you are already honouring that, then set all the quality settings to their maximum values and don't worry if the file size comes in well under 25Mb.

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New Here ,
Mar 19, 2019 Mar 19, 2019

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No maximums on dimensions.

I want to save it at the largest dimensions that meet the 25 MB requirement.

Is there a way to save a file to a specific file size through Photoshop CC?

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LEGEND ,
Mar 20, 2019 Mar 20, 2019

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No. Just keep trying with different settings. Keep returning to a saved PSD; do NOT ever reopen the JPEG to try again.

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LEGEND ,
Mar 19, 2019 Mar 19, 2019

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Resolution is meaningless on the web all the matters is the number of pixel you have for your images.  Web Display devices can not change their resolution.   Display are not like printers that can render image at different resolutions. 

JJMack

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Adobe Community Professional ,
Mar 20, 2019 Mar 20, 2019

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cp805  wrote

I am trying to upload to my wix website and the max file size is 25 MB.

I want it as large of a resolution as possible.

I don't know how Wix handles image compression, but flickr does terrible damage to your images when downsizing them.  It go so that I  gave up trying to share high res images, because people would only see the downsized version unless they bothered to go to the trouble  of finding the full res image, and the default sized image looked awful.  It was soul destroying.

I'd be testing this before I believed what it says.

Wix Support

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Adobe Community Professional ,
Mar 20, 2019 Mar 20, 2019

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Hi

Document size at the bottom of the Photoshop window is the size in RAM. That is not the same thing as the file size on disk.

Save a Master copy of your document as PSD.

Then use Export - Save for web to export a copy as png or jpeg. You can adjust the settings in that dialogue and see the file size impact at the bottom of the dialogue screen.

Dave

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Community Beginner ,
Jul 09, 2020 Jul 09, 2020

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Thanks a ton, save for web is perfect for this application. You've saved me a lot of time and hassle.

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Explorer ,
May 07, 2021 May 07, 2021

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You can also open the image in Lightroom. Their "Save As..." has the option for file size in MB if you scroll down.

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