Metadata Editor

The "Metadata Editor" is an application that extracts and displays metadata information from various file formats such as video, audio, PDF, and image files. It uses the official ExifTool Perl library. The extracted metadata is listed in the interface, and it can be used to check if the provided files contain sensitive information in their header before sharing them with others. Simply drag and drop the files into the interface and wait for a few minutes for the application to process the metadata.

This Progressive Web Application (PWA) allows you to extract metadata from files without the need to send them to a remote server. It loads resources locally, allowing for offline metadata extraction. Once the initial loading is complete, you can even disconnect from the internet and still use the application, as it utilizes the browser cache for subsequent usage. It uses the official ExifTool library to read the metadata header of the provided files, helping you ensure that the files do not contain sensitive information such as geographic coordinates on image files. The metadata information, also known as tags, is organized into human-readable groups based on the file type. Some popular groups include:

• EXIF (Exchangeable image file format) data, which includes information about the camera and settings used to take a photo
• IPTC (International Press Telecommunications Council) data, which includes information about the photo such as captions, keywords, and copyright information
• XMP (Extensible Metadata Platform) data, which includes information such as author, title, and description
• GPS (Global Positioning System) data, which includes location information
• File system metadata, such as file creation and modification dates
• Audio and Video codec information

A list of the most commonly extracted tags that this application displays:

• File Name: the name of the file
• File Size: the size of the file in bytes
• Image Width and Height: the dimensions of the image in pixels
• Make and Model: the make and model of the camera used to take the photo
• Date and Time: the date and time that the photo was taken
• Exposure Time: the length of time that the camera's shutter was open
• ISO: the camera's ISO setting
• Focal Length: the focal length of the lens used to take the photo
• Aperture: the aperture setting of the lens used to take the photo
• GPS Latitude and Longitude: the geographic coordinates of the location where the photo was taken

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