PLA Forums
Other Stuff That Has Little To Do With PLA => Techinical Shit => Technical Support => Topic started by: Tachyon on September 09, 2007, 07:09:36 PM
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Can somebody (Trev?) point me to some information about the way that programs like photoshop or video production software leaves hashes in files produced (that can identify the box that made them) and how to remove them completely? I had a hard enough time wording this in a question, let alone into a google string so don't think I'm just being lazy.
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"Software commonly leave signatures on files, demarking the computer that created them. How might I completely remove these?"
I dunno. Ask someone else.
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Use older versions of the software ??? I too would like to know this
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The term for this is called "metadata". It can be a myriad of information that a program writer sees fit to add to a particular file. One of the main reasons this occurs is due to file protection. A photo, for example, may be something you created, thus, your information (i.e. your name, other computer elements such as what program you used to make it, date it was created) assists in copyright, and if distributed allows for knowing what you used.
This is typical in Microsoft Word - which adds metadata such as name, business name, and the fact that you used Word. Therefore, if this file is distributed - the metadata states it's yours and that it's an Office file. What's convenient about Word is that there is an option to remove personal information from file.
If you want to remove metadata from a file, then do a search for "Metadata Removal Tools" and you'll be all set.
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I found that I can remove all meta data in jpegs with a hex editor *shrug* I don't like people knowing what the shutter speed on what camera I used is. It's none of their god damned business! :P
Give it a shot on other file types, just work on a backup copy.
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I found that I can remove all meta data in jpegs with a hex editor *shrug* I don't like people knowing what the shutter speed on what camera I used is. It's none of their god damned business! :P
Give it a shot on other file types, just work on a backup copy.
You don't need to do this. Doesn't your camera have the option to disable EXIF?
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when i pissed around with windows i always used fake infoz when installing shit, so i nevar looked into it.
That would be funny to edit the metadata so that you can prove to the judge you made a photo using a Gibson+Microsoft Excell back in 1962.
My posse throws down like leaky bucket regulators;
I was coding shit in MIPS while you were playing Space Invaders.
With my finger on the trigger I run ./configure
Yo, this package is big, but MY package is bigger.
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My posse throws down like leaky bucket regulators;
I was coding shit in MIPS while you were playing Space Invaders.
With my finger on the trigger I run ./configure
Yo, this package is big, but MY package is bigger.
+4 leet points over the next week.
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:D thats from kill dash nine.
so i pull out my keyboard and i pull out my glock,
i dismount your girl, and i mount /proc.
i got your fucking PID and the bottom line,
is that you best not front -
OR ITS KILL -9!
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I should listen to more "nerdcore" instead of Jay-Z, E-40 etc.
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I should listen to more "nerdcore" instead of Jay-Z, E-40 etc.
Party and Bullshit by NT Big is just like nerdcore rap. I think it's bout a LAN battle 'cause he talks about his '.22s' and he wonders if he can use guns in the battle.Youtube it, it's tasty.
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I'll be sure to check that out.
BTW, are you ever going to change the url in your sigline to tittybarjones.com?
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Can somebody (Trev?) point me to some information about the way that programs like photoshop or video production software leaves hashes in files produced (that can identify the box that made them) and how to remove them completely? I had a hard enough time wording this in a question, let alone into a google string so don't think I'm just being lazy.
I was dicking with something at work and happened to notice that a lot of my .jpg and .bmp files have thumbnails and summary information in an alternate data stream. It's possible that's what your program is using.
To see if they're there, I recommend this fine tool:
http://www.heysoft.de/nt/ep-lads.htm
There are some command-line ways to manipulate them, but if you just want to get rid of them the easiest way is to move the file to a file system that doesn't support ADS and then move it back. A floppy disk or USB key qualifies for that.