Login Register






Thread Rating:
  • 0 Vote(s) - 0 Average


Tutorial Erase Metadata from Files/Documents/Pictures filter_list
Author
Message
Erase Metadata from Files/Documents/Pictures #1
Today I'm going to show you how to remove metadata on a lot of document types.

But what is metadata? And why it’s important to remove it?

Metadata can be helpful for people who want to extract information from large data stores. However, it can also be misused to know about a person's location or their identity without their knowledge or consent. Therefore, removing metadata is essential to ensuring your privacy and anonymity online.

You can go directly to the file format of your choice or read everything. Let's go !

For pictures and videos :

On Windows, macOS, and Linux I would recommend :

EXIFCLEANER:

that allows viewing and/or removing those properties.

Just install it from https://exifcleaner.com/ run and drag and drop the files into the GUI. allows viewing and/or removing those properties.

EXIFTOOL:
It is actually simple, just install exiftool and run:

To display metadata:
exiftool filename.jpg

To remove all metadata:
exiftool -All= filename.jpg

PDF files:

For PDF I would recommend

PDFPARANOIA
(LINUX/WINDOWS/MACOS/QUBESOS):
Get it here : https://github.com/kanzure/pdfparanoia

which will remove metadata and watermarks on any PDF.

You can do it also with exifcleaner and exiftool . But for exiftool there is how to proceed

It is actually simple, just install exiftool and run:

To display metadata:
exiftool filename.pdf

To remove all metadata:
exiftool -All= filename.pdf

Microsoft Office Documents:

First, here is a tutorial to remove metadata from Office documents: https://support.microsoft.com/en-us/offi...a4d085966f

Make sure however that you do use the latest version of Office with the latest security updates.

Once again you can do it also with exifcleaner and exiftool . But for exiftool there is how to proceed

EXIFTOOL:
It is actually simple, just install exiftool and run:

To display metadata: exiftool filename.docx

To remove all metadata: exiftool -All= filename.docx

And for finish an all in one tool

Another option good tool to remove metadata from various documents is the open-source mat2

Get it here : https://0xacab.org/jvoisin/mat2

which you can use on Linux quite easily. I never managed to make it work properly within Windows due to various dependencies issues despite the provided instructions. It is however very straightforward to install and use on Linux.

So, if you want to use it on windows, I would suggest creating a small Debian or other Linux os VM within Virtualbox which you can then use from your analyze various files from a convenient web interface.

Hoping to have been clear!

[+] 2 users Like Troubilshow's post
Reply

RE: Erase Metadata from Files/Documents/Pictures #2
Is there any way of modifying the metadata?


Reply

RE: Erase Metadata from Files/Documents/Pictures #3
(08-26-2022, 02:29 PM)Kaz Wrote: Is there any way of modifying the metadata?

U can do it with exiftool

Here is a video about that :
https://youtu.be/6jt_Qia8E64

Reply

RE: Erase Metadata from Files/Documents/Pictures #4
(08-26-2022, 03:13 PM)Troubilshow Wrote:
(08-26-2022, 02:29 PM)Kaz Wrote: Is there any way of modifying the metadata?

U can do it with exiftool

Here is a video about that :
https://youtu.be/6jt_Qia8E64

Thanks sir!


Reply

RE: Erase Metadata from Files/Documents/Pictures #5
(08-26-2022, 03:17 PM)Kaz Wrote:
(08-26-2022, 03:13 PM)Troubilshow Wrote:
(08-26-2022, 02:29 PM)Kaz Wrote: Is there any way of modifying the metadata?

U can do it with exiftool

Here is a video about that :
https://youtu.be/6jt_Qia8E64

Thanks sir!

No problem at all !
(This post was last modified: 08-26-2022, 03:45 PM by Troubilshow.)

Reply

RE: Erase Metadata from Files/Documents/Pictures #6
One trick I would add is to just take a screenshot of your desired pics/photos.

Obviously before doing so you should check whether your system screenshot tool leaks any info or not (use the methods OP mention).

Reply

RE: Erase Metadata from Files/Documents/Pictures #7
(09-06-2022, 06:16 AM)Terraria Wrote: One trick I would add is to just take a screenshot of your desired pics/photos.

Obviously before doing so you should check whether your system screenshot tool leaks any info or not (use the methods OP mention).

Yes it can be a good alternative but it depends on the situation, for example for a pdf that you have to send in this format it is not useful to make a screenshot

Reply

RE: Erase Metadata from Files/Documents/Pictures #8
thanks for the great writeups!

Reply







Users browsing this thread: 1 Guest(s)