What data is saved into a PSD (and JPG and GIF)?

In article ,
"" wrote:

When I save images from my copy of Photoshop for distribution on the web in the formats JPG and GIF, do they contain any personal data in the image data? I also provide PSD files for many of the images I distribute, so will they contain information about my copy of Photoshop, or my OS etc?

No personal information is embedded in these formats other than (possibly) EXIF data identifying your digital camera’s make, model, exposure settings, and time, if (a) your camera includes this information and (b) you don’t tell Photoshop to remove it.

—
Photography, kink, polyamory, shareware, and more: all at http://www.xeromag.com/franklin.html

On Aug 12, 8:11 pm, tacit wrote:

In article ,

"" wrote:

When I save images from my copy of Photoshop for distribution on the web in the formats JPG and GIF, do they contain any personal data in the image data? I also provide PSD files for many of the images I distribute, so will they contain information about my copy of Photoshop, or my OS etc?

No personal information is embedded in these formats other than (possibly) EXIF data identifying your digital camera’s make, model, exposure settings, and time, if (a) your camera includes this information and (b) you don’t tell Photoshop to remove it.
—
Photography, kink, polyamory, shareware, and more: all athttp://www.xeromag.com/franklin.html

Thank you very much.

On Sun, 12 Aug 2007 15:11:34 -0400, tacit wrote:

In article ,
"" wrote:

When I save images from my copy of Photoshop for distribution on the web in the formats JPG and GIF, do they contain any personal data in the image data? I also provide PSD files for many of the images I distribute, so will they contain information about my copy of Photoshop, or my OS etc?

No personal information is embedded in these formats other than (possibly) EXIF data identifying your digital camera’s make, model, exposure settings, and time, if (a) your camera includes this information and (b) you don’t tell Photoshop to remove it.

Well, he’s saying that he distributes the images on the web. I suppose it depends on his image host, but you can usually back into anyone’s entire uploaded image output from one image.

Just randomly selecting this image:

http://io-noi-aldo.sonance.net/blogpix/a_napoleon.jpg

we can back into his index

http://io-noi-aldo.sonance.net/blogpix/

There was a flap in another newsgroup over this. A poster linked to an image hosted by PhotoBucket, and someone backed into the poster’s entire PhotoBucket site. There were some images in there intended to be…ummm…private.

—

Tony Cooper
Orlando, FL

In article ,
tony cooper wrote:

Well, he’s saying that he distributes the images on the web. I suppose it depends on his image host, but you can usually back into anyone’s entire uploaded image output from one image.

Just randomly selecting this image:

http://io-noi-aldo.sonance.net/blogpix/a_napoleon.jpg

we can back into his index

http://io-noi-aldo.sonance.net/blogpix/

That’s easily fixed by a simple .htaccess change. In fact, by default, every Web browser I am aware of blocks viewing the contents of a directory unless the .htaccess file explicitly permits it. This guy has set up an .taccess file to allow viewing of the contents of /blogpix. I do the same thing I have two Web servers I use to host files for my Weblog (among other things) and I have explicitly permitted viewing the index of those directories.

However, what I think the OP is asking is whether or not a file saved from Photoshop contains embedded within it information that can identify the person or the copy of Photoshop that created it. The answer to this question is "no."

There was a flap in another newsgroup over this. A poster linked to an image hosted by PhotoBucket, and someone backed into the poster’s entire PhotoBucket site. There were some images in there intended to be…ummm…private.

Well, that person was a dumbass. PhotoBucket,IIRC, allows tagging images as private…or he could always set up multiple accounts, one for public images and one for private.

—
Photography, kink, polyamory, shareware, and more: all at http://www.xeromag.com/franklin.html

wrote:

When I save images from my copy of Photoshop for distribution on the web in the formats JPG and GIF, do they contain any personal data in the image data? I also provide PSD files for many of the images I distribute, so will they contain information about my copy of Photoshop, or my OS etc?

Thanks in advance.

If you look at the ‘File Info’ window for the PSD, you’ll see all the information stored with the PSD.

—
http://www.xoverboard.com/cartoons/2007/070416_argument.html

On Sun, 12 Aug 2007 22:01:44 -0400, tacit wrote:

In article ,
tony cooper wrote:

Well, he’s saying that he distributes the images on the web. I suppose it depends on his image host, but you can usually back into anyone’s entire uploaded image output from one image.

Just randomly selecting this image:

http://io-noi-aldo.sonance.net/blogpix/a_napoleon.jpg

we can back into his index

http://io-noi-aldo.sonance.net/blogpix/

That’s easily fixed by a simple .htaccess change. In fact, by default, every Web browser I am aware of blocks viewing the contents of a directory unless the .htaccess file explicitly permits it. This guy has set up an .taccess file to allow viewing of the contents of /blogpix. I do the same thing I have two Web servers I use to host files for my Weblog (among other things) and I have explicitly permitted viewing the index of those directories.

However, what I think the OP is asking is whether or not a file saved from Photoshop contains embedded within it information that can identify the person or the copy of Photoshop that created it. The answer to this question is "no."

There was a flap in another newsgroup over this. A poster linked to an image hosted by PhotoBucket, and someone backed into the poster’s entire PhotoBucket site. There were some images in there intended to be…ummm…private.

Well, that person was a dumbass. PhotoBucket,IIRC, allows tagging images as private

Not the free version. You can with the paid Pro version.

or he could always set up multiple accounts, one for public images and one for private.

Usually, when something embarrassing happens, it’s because the person didn’t know "backing in" could be done. It never occurred to them that there was any need to take any precautions.

—

Tony Cooper
Orlando, FL

On Aug 13, 4:48 am, tony cooper wrote:

On Sun, 12 Aug 2007 22:01:44 -0400, tacit wrote:

In article ,
tony cooper wrote:

Well, he’s saying that he distributes the images on the web. I suppose it depends on his image host, but you can usually back into anyone’s entire uploaded image output from one image.

Just randomly selecting this image:

http://io-noi-aldo.sonance.net/blogpix/a_napoleon.jpg

we can back into his index

http://io-noi-aldo.sonance.net/blogpix/

That’s easily fixed by a simple .htaccess change. In fact, by default, every Web browser I am aware of blocks viewing the contents of a directory unless the .htaccess file explicitly permits it. This guy has set up an .taccess file to allow viewing of the contents of /blogpix. I do the same thing I have two Web servers I use to host files for my Weblog (among other things) and I have explicitly permitted viewing the index of those directories.

However, what I think the OP is asking is whether or not a file saved from Photoshop contains embedded within it information that can identify the person or the copy of Photoshop that created it. The answer to this question is "no."

There was a flap in another newsgroup over this. A poster linked to an image hosted by PhotoBucket, and someone backed into the poster’s entire PhotoBucket site. There were some images in there intended to be…ummm…private.

Well, that person was a dumbass. PhotoBucket,IIRC, allows tagging images as private

Not the free version. You can with the paid Pro version.

or he could always set up multiple accounts, one for public images and one for private.

Usually, when something embarrassing happens, it’s because the person didn’t know "backing in" could be done. It never occurred to them that there was any need to take any precautions.

—

Tony Cooper
Orlando, FL

Thank you all. I am more knowledgeable about Web Servers than I am about Photoshop, so I knew that there was a risk of people ‘backing up’ to view a directory listing of files.

However, I doubt I will be hosting anything private, and in any case, I normally edit the .htaccess file or just place an empty index.php file which gets served to the browser instead of a directory listing.