Metanull image metadata removal for Windows

Posted10 August 2016

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    Metanull is a Windows application for removing metadata from files, such as TIFF or JPEG which are created by digital cameras or mobile phones.

    Required reading

    What you will get from this guide

    • The ability to scan for and remove sensitive metadata from image files without installing the software on your computer.
    • The ability to save disk space and server bandwidth by removing uneeded metadata.

    1. Introduction to Metanull

    1.1 Things you should know about Metanull before you start

    Digital cameras and mobile phones create image file formats such as TIFF (Tagged Image File Format) and JPEG (Joint Photographic Experts Group), These files contains hidden data or metadata called EXIF (Exchangeable image file format) which can include the date, time and sometimes the GPS coordinates of the picture, the brand and serial number of the device which took it as well as a thumbnail of the original image. Metanull can remove the metadata from your image files so the image you have won't have kind of information that identify you in it.

    • Make sure to securely delete, hide or encrypt the original version of the image that you stripped the metadata from. Metanull doesn't delete the original version of the images by default.

    • Make sure to check out the image's properties after using Metanull to ensure that there are no metadata left in the image before you share it with anyone.

    • Metanull has been tested with a range of different images, but since it is not possible to test it with every known image type, there is the possibility that it may corrupt some files. Be sure to keep backups of your files.

    • Metanull doesn't protect you against facial recognition technology.

    2. Use Metanull to remove metadata from a file

    Step 1. Click on the Metanull.exe executable file to run it.

    Note: You don't need to install this software on your computer in order to use it.

    Step 2. To clean a single file, check the circle beside single file and click select.

    Figure 1: Metanull home screen

    Step 3. Select the file you wish to clean by clicking Select.

    Step 4. Under Copy the result image(s) to, click Browse and select a location to which you want your cleaned files to be saved.

    Figure 2: A selected file and destination

    Step 5. Click Null it to remove the metadata from this image.

    Figure 3: Completed process

    Step 6. Locate the cleaned file, right click it and check properties to ensure the meta data has been cleaned.

    3. Use Metanull to remove metadata from a folder of files

    Step 1. Click on the Metanull.exe executable file.

    Step 2. To clean a folder, check the circle beside Batch folder.

    Figure 4: Metanull home screen

    Step 3. Select the folder you wish to clean by clicking on Browse.

    Step 4. Under Copy the result image(s) to, click Browse and select a location to which you want your cleaned files to be saved.

    Figure 5: A selected folder and destination

    Step 5. Click Null it to remove the metadata from this file.

    Figure 6: Completed process

    Step 6. Locate the selected files and double-check that the metadata has been removed by going to the properties of the images.