This is what I've done wrong.

No, you didn't do anything wrong. Photoshop saved wrongly by not putting a hidden .jpg extension on the filename.

Digidol wrote:

 

Ah, so is there anything I can do so it saves as JPEG automatically?

 

Now I am having to add '.jpeg' onto the name of some images to make sure it saves them correctly.

To be clear, Ps does save a correct JPEG file. The problem is only that the filename extension will be completely missing, causing problems for some other apps, unless you explicitly specify it in the filename field of Ps save dialogues.

The solution for now is to always ensure that the filename has an explicit extension before hitting the "Save" button in a Ps save dialogue.

When you open a save dialogue, type the name before selecting output format; you should see the extension automatically being appended to the content of the filename field.

It is possible that someone has a reason for deliberately saving files with absolutely no extension, and not just a hidden extension, I suppose.

It might be a good idea for Ps to have the common "Hide extension" checkbox in save dialogues, by the way. That way, the user can choose to deliberately remove the extension in the filename field, and usefully get a file with a hidden extension instead of a probably unexpected complete lack of extension and attendant problems when trying to use the file with other apps which rely on there being an extension.

Ps CS6 on OS X 10.6.8 saving a JPEG with the following filenames:

myfile

myfile.

myfile.jpg

creates files named:

myfile

myfile.

myfile.jpg

The first two have no extension at all, not even a hidden one, and therefore will not be recognised as JPEG by some apps. In OS X, filenames can contain periods, and in the second example, the trailing period is just another character in the name.

Doing that with CS5.1 creates a well-named JPEG, myfile.jpg, in all three cases.

Noel,

I cannot reproduce the behavior described by conroy2009 on my Mac setup (Photoshop 13, Snow Leopard 10.6.8) either by doing a Save As or a Save for Web.  The appropriate extension is appended in all cases, as long as the user does not delete it.  Therefore it is not "a bug" that affects all Macs.

It's either specific to conroy2009's system or it could be related to Apple's infamous Lion 10.7.x operating system, which I have no plans to get anywhere near.    Maybe Mountain Lion, when they get to around version 10.8.8—and if it is not as dumbed-down-for-the-iPad as Lion. 

Digidol wrote:

 

I have a brand new apple Mac OS X version 10.7.4…

You have my sympathies. 

Digidol wrote:

 

…I am a bit suprised that my old pc and photshop version

saved files easier than all this new technology…

This "new technology" is geared toward the iPad and other mobile devices.  Worse still, Apple usually don't get a new OS right until they are at about the dot eight version.  Lion 10.7.4 is on its way out and will be replaced by Mountain Lion 10.8.1 shortly, so no chance of its reaching maturity now. 

conroy2009 wrote:

 

It's either specific to conroy2009's system or it could be related to Apple's infamous Lion 10.7.x operating system,

 

Wrong and wrong.

 

1. …Chris has said that the behaviour is by design…

No; he has said no such thing.  Quite the opposite:

The extension will only be missing if the user types over the extension. This is a deliberate act by the user, and may be intentional, so must be respected by the application.

PEBKAC.

Well, duh!

Well, I was trying to help the OP, duh!

In any case, many Mac user's want the file extension hidden, not completely absent, so it's not surprising the OP entered a name with no extension and expected CS6 to simply hide the extension of the generated filename. If there was a checkbox for "Hide extension", as in many other apps' save dialogues, then this entire thread may have never been necessary.

In summary, it sounds to me as though the Mac concept of "hidden extension per file" isn't embraced at all by Photoshop.

So assuming the extension is always visible, what is the easiest way do each of the following (ignoring issues with integration with other apps):

1.  Save a JPEG as:  abc.jpg

2.  Save a JPEG as:  abc

3.  Save a JPEG as:  abc.

4.  Save a JPEG as:  abc.xxx

Since it seems to me we still haven't nailed down whether there's a disparity between how this works on Photoshop for Mac vs. PC, I'll answer the above questions for PC:

1.  File - Save As, choose Format: JPEG, type (replace filename with):  abc

2.  No difference than 3 on a PC.

3.  File - Save As, choose Format: JPEG, type:  abc.

4.  File - Save As, choose Format: JPEG, type:  abc.xxx

How is it different from the above on a Mac?

Is there something more complex, such as the sequence of operations, or another system setting, that I didn't cover here?  I normally always keep Explorer set so that file extensions are visible (it's global on a PC).

-Noel

I normally always keep Explorer set so that file extensions are visible (it's global on a PC).

In OS X Finder, extension visibility is a file attribute. There is an option to ignore that and always display all extensions.

Digidol wrote:

 

I only have this problem when saving with Photoshop CS6 extended.

 

Yes, Ps CS5.1 Save As JPEG always gives .jpg extension to the exported file, and I expect almost all other apps will put a visible or hidden .jpg on a JPEG.

Noel Carboni wrote:

 

... from the sound of things it was likely changed intentionally, and you're going to have to get used to specifying the entire name.  I would also suggest turning on that Finder option to show the extensions all the time, assuming it doesn't cause you other headaches.

 

-Noel

I can't speak for the OP, but I'll leave my Finder preference as it is - hiding the extensions which I choose to hide. The CS6 change hasn't been causing me a problem; I've only been posting in this thread to try to help other users.

Digidol wrote:

 

…I think its stupid to have to type in .jpg every time you want to change the file name though…

I never have to type the extension.  Photoshop CS6 always adds it for me.

station_two wrote:

 

Noel,

 

No.  On my Photoshop CS6/Snow Leopard setup, the extension is always added—unless I do something monumentally stupid like typing over the extension. 

The OP has not done anything monumentally stupid. Please show at least minimal respect for others.

Ps CS6 is going against the expectations of users who save files from other programs, including Ps CS5.1 (!!!), by not automatically creating either a hidden or visible extension when the extension is absent from the filename field of a save dialogue.

conroy2009 wrote:

 

…Ps CS6 is going against the expectations of users who save files from other programs, including Ps CS5.1 (!!!), by not automatically creating either a hidden or visible extension when the extension is absent from the filename field of a save dialogue.

That never happens on my setup.  The extension is absent only if I type over it.