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Creating a larger JPG?

Forum|Forum|5 years ago
November 3, 2020
3 replies
770 views

Normally I do work in ACR but due to the problems with cropping not working I have to open some images in PS to crop.

I am noticing that the JPGs from PS are small compared to ones when I download from ACR. I did some research and found the 'Quick Export' preferenes and set it to 100% but that did not really help. How can I get PS to create the same size JPGs as ACR?

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Correct answer D Fosse

Jpeg file size tells you absolutely nothing. Jpeg uses very aggressive data compression to reduce file size on disk. When reopened the file is decompressed back to approximately the former size (but not exactly the former state!).

Depending on compression level and image content, a jpeg on disk can be, say, 1 - 5 % of decompressed size.

dpcpatronAuthor

Participating Frequently

I think this will help

JPG from ACR - https://www.dropbox.com/s/5gpu1rcpdpoivux/JPG%20from%20ACR.pdf?dl=0

JPG from PS - https://www.dropbox.com/s/3r910tdo85ve90x/JPG%20from%20PS.pdf?dl=0

A lot of info is missing from the PS JPG as well as it being smaller.

D Fosse

Community Expert

This is the important part. This is the pixel size, and yes, one is much bigger than the other (and much bigger than is normally needed for web use):

Apparently one is a Save, and the other a downsized Export from Photoshop. Export will remove all metadata.

dpcpatronAuthor

Participating Frequently

I see nobody could figure this out. I got it to work by using a procedure

In ACR there is a setting under 'workflow' to resize JPGs.I turned it off.

I am now using the ACR crop feature though it is 'shakey' compared to PS and can do most of the images using ACR only.

If I need to touch up a model's skin using the healing brush I do all the ACR edits, save the JPG, and then open it in PS , make the changes, and it does not resize.

Click twice on this image and it shows what I am wanting.

https://www.flickr.com/photos/lautermilch/50570792563/in/dateposted-friend/

Nancy OShea

Community Expert

By size, do you mean height & width or filesize?

Suffice it to say, I NEVER save original images as JPGs. I always save original RAW, layered PSD or TIFF. Exporting copies to JPG or PNG is always the last step in my workflow.

File > Export > Export As.

Nancy O'Shea— Product User & Community Expert

dpcpatronAuthor

Participating Frequently

I am looking for height and width.

For example, if you click twice on any of these images look at the detail you can see

https://www.flickr.com/photos/lautermilch/albums/72157716035237123/with/50563802393/

The last image on the page in greyscale is 0020-1. I just did by editing in ACR and then cropping in PS and try clicking on that one and that is what I am talking about.

Randy Hufford

Community Expert

Maybe consider Lightroom Classic?

D Fosse

Correct answer

Community Expert

Jpeg file size tells you absolutely nothing. Jpeg uses very aggressive data compression to reduce file size on disk. When reopened the file is decompressed back to approximately the former size (but not exactly the former state!).

Depending on compression level and image content, a jpeg on disk can be, say, 1 - 5 % of decompressed size.

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