![]() Notice that all the hashes of the segments are identical, except for the third segment, APP1. Here is the output for file Canon_40D.jpg (original file), I’m using option -E to include the SHA256 hash of the data of each segment:Īnd here is the output for file Canon_40D-redacted-W11.jpg (redacted file): JPEG files are composed of segments of data, these segments can be analyzed with my tool jpegdump.py. Looking at the redacted file with binary editor 010 Editor, I noticed that these properties had not been completely removed. When you click OK, a new file will be created: Canon_40D – Copy.jpg (I renamed this file to Canon_40D-redacted-W11.jpg, because I tested this first on my Windows 11 machine).įile Canon_40D.jpg contains Exif data pertaining to the camera, like its maker and model:įile Canon_40D-redacted-W11.jpg (the redacted version of file Canon_40D.jpg) contains less Exif data: the maker and model properties have been removed: Then click “Remove Properties and Personal Information”: Within an open folder (Windows explorer), select a media file (I’m using Canon_40D.jpg), right-click and select properties: There is an issue with this feature: it does not properly remove Exif data. For example, removing Exif data from JPEG files. You can explore more about the Java metadata API from the documentation.Windows explorer has an option to remove properties from media files: “Remove Properties and Personal Information”. It can support removing metadata from word-processing documents, spreadsheets, presentations, PDF files, images, emails, eBooks, drawings, zip files, and many more. Now you can build your own metadata cleaner java application. In this article, we learned cleaning metadata from documents and images using Java. Call the removeProperties method and pass the personalized specifications.Create personalized specifications to find the metadata properties.Create Metadata object to load the targeted document or image file. ![]() The following steps show how to locate and remove the metadata using the specific name of the property. It is not always required to remove all the available metadata from the files, however, we sometimes want to remove the selective metadata properties. Remove Selective Metadata from Documents and Images using Java #
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