Losing Information in Photoshop

I just saw this thread. I am having this same alert appear sporadically when trying to save an image that I converted to a Web profile. Sometimes it works, sometimes not. It seems to be ok if I save it as a copy, but I preferred the original way to Save or Save As. 

I agree with Jane, Conrad and D Fosse.

In my opinion, the question that needs to be addressed is -not- weather we should avoid compression or be mindful of it each time we save a file -or- the role Adobe has in this. 

Instead we need to look at ourselves and other consumers of media, No one I knows cares that MP3 compresses the music. Outside. of people who make music and video I haven’t heard people complain about reduced dynamic range in sound or pictures or video……..Also, if we increase awareness we also have to understand how limited the market devices and networks can deliver media with full dynamic range. (Geez, Premiere and After Effects still refuse “FLAC” files.

To me, idea that we lose information is not the question, Do people care ??  -- and if they do — can they see and hear dynamic range of all media. --- (on tiny phone screens and in the tiny ear buds).

Lastly, and an important component….we love to share pictures and video …..how are media files with full dynamic range going to fit the into this ???  

Lee Clawson / Phila Pa

I AM ALSO FACING THE SAME ISSUE,

L.A. Clawson / Phila PA

OK...but you don’t say a JEPG will lose info

Or that ANY compression is the source of a loss

You just say “saving wll lose infio”.

Its confusing. And you could get you message 

across -once- versus constantly saying same thing.

and if you wanted to be helpful you’d offer ideas

for the vast number if images we prep for social media

each one compressed.

Lastly, how about all the MP4 files we create ???????

The message is new, but it’s confusing because the wording is vague and doesn’t offer a solution.

It’s trying to warn about when, for example, someone started by opening a JPEG file and then added all kinds of Photoshop features that can’t be preserved when saving as a JPEG file again, like a lot of the things D Fosse mentioned. That part is nothing new. But I think in this release Adobe was trying to explain why Photoshop wants extra steps when saving what was originally a JPEG but now needs to be saved as a Photoshop (PSD), Photoshop Large Document (PSB), or TIFF file to preserve all of the features used.

Since the latest update, each time I go to export my file, I'm told that if I export it as a jpeg, I will lose information. This happens whenever I open the export window.

By @Monica23106099kccw

The word “export” is used there, but are you sure that it happens when you specifically use a command on the File > Export submenu, such as Export As or Save for Web? Because I only notice the alert message when using the File > Save or File > Save As commands, that’s where Adobe wants to warn people away from saving an original as JPEG when it contains non-JPEG features. 

In other words, it shouldn’t warn when truly exporting, it should warn only when using the Save As or Save commands with non-JPEG features.

That also points to one workaround. To avoid the message, use a command on the File > Export submenu because those always create a copy that doesn’t overwrite the original. Or, if you want to preserve Photoshop layers, transparency, Smart Objects, etc., save as PSD, PSB, or TIFF format.

But again, I think their alert message wording is unhelpful and they need to edit it so that people know what to do.