Saving/exporting sRGB Jpegs for printing

This can happen if you use save for web instead of save as. The difference is save as embeds the ppi in the metadata, where as save for web does not (or by default is doesn't) As long as the pixel dimensions did not change, you are fine. The ppi only tells the printer the final printing size. Which you or the printer can do easily in photoshop or another app.

Are you opening your JPEGs through Camera Raw?

As I recall it sets its own ppi value during the open, per the link at the bottom-center of the Camera Raw dialog.

I don't let Camera Raw anywhere near my JPEGs myself...

-Noel

That's a good thought, if any metadata was added due to camera raw the jpg would by default open in camera raw. This is not really necessary any more with the latest version of photoshop as it can edit the image using the camera raw filter instead.

What's the default for the setting I noted above nowadays?  Seems to me it was set by default to open JPEGs through Camera for quite a while, but it's been so long since I set up a clean system (without migrating settings) I honestly don't know if they've changed that.  As you say, since one can now run Filter - Camera Raw, it's hardly necessary.

-Noel

That reminds me, some email programs take out the print metadata in a jpeg, so you may want to think about using that as file transport as well.

It's really none of my business if you deliberately want to lose image quality, but why on earth are you saving images to be printed in lossy format like JPEG?    The image quality deteriorates every single time you open and save a JPEG.

To my knowledge, the default is only when the metadata has been edited for it to open in camera raw. But to be honest, I may have changed it once way back when and never changed it again. Most of my jpg's don't have any metadata edits so they all open normally.

But as I mentioned the filter, the default could be changed to never on newer versions and it wouldn't harm anyone. In fact, they could remove that option all together now if they chose to. Kind of redundant now, I believe.

Thats a good point. I forgot some will do that for catching viruses, etc. But I normally don't have a need for the web email sites, so those features are not all that fresh in my mind anymore.

When camera raw opens, click the link at the bottom center of the dialog box. That is where you type in the ppi. To my knowledge that setting sticks, until you change it again.

I tried opening a 300ppi image and a 96ppi image and both showed 300ppi for that setting. So it looks like it is a sticky.

Picturequest wrote:

 

So As long as I save as... when the JPG is opened in another app,  sans Camera Raw, it will report the actual DPI and size?

Yes, but why not check it yourself?

-Noel

Did you try disabling the setting I showed above, Picturequest?

If Photoshop opens the image directly (NOT through Camera Raw) the ppi value is preserved.  Try it.  Then use Filter - Camera Raw for any needed tweaks.

-Noel

Even if for some reason the ppi was @72 ppi The printer would still scale the image to fit which will increase its ppi. As I stated the ppi is just a figure that is stored in the metadata, the number of pixels don't change.

If there was an issue with the ppi not saving in the metadata using save as, complaints would be all over this forum, but there is none. So the answer is yes the ppi is saved to the metadata using save as.

This is not hard to verify, you can look at the files properties in your image viewer (explorer or finder)

Silkrooster wrote:

 

…The printer would still scale the image to fit…

Of course any printer worth their salt could and would.  If I knew the OP, I would have said "look for another printer".