Used to securely edit metadata in PDF files. Update with -PDF-update:all=) because the original information is If you want to try to recover the hidden / removed metadata from PDF files, the man page explains how to dot it:Ĭhanges to PDF files by ExifTool are reversible (by deleting the So if you really want to delete the metadata from PDF files so it cannot be recovered instead of just hiding it, you should use the command qpdf -linearize in.pdf out.pdf afterwards.
Using the "qpdf" utility with this command: "qpdf -linearize in.pdf (However,Īfter running ExifTool the old information may be removed permanently Old information is never actually deleted from the file. While this would normally beĬonsidered an advantage, it is a potential security problem because Deleted tags mayĪnd by looking for the error message on a search engine, I found with a link to that mentions:Īll metadata edits are reversible. Warning: ExifTool PDF edits are reversible. When using the command exiftool -all= inputfile shared here on PDF files, I got this message:
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