arr@lemmy.dbzer0.comtoPiracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ@lemmy.dbzer0.com•How to remove tracking metadata from my PDFEnglish
9·
1 year agoYou can of course remove the metadata, but you can’t really be sure you removed all watermarks hidden in the actual content, unless you can make two downloads from different sources have the same hash with whatever method you’re going to use. That way you’d know for certain that you caught whatever was inserted to identify you. Anything other than metadata will be very hard to find and remove in an automated way unless you already know exactly what you’re looking for though.
That said, this is how I’ve cleaned up metadata in batches of PDF files using qpdf
and exiftool
in the past:
for file in *.pdf; do
exiftool -all:all= -overwrite_original "$file"
qpdf --linearize --replace-input "$file"
done
That’s not quite true. There are tools that let you download directly from Spotify (e.g. Soggfy) and with a premium account you’ll get 320kb/s OGG files out of it, because that’s what Spotify uses internally. But since almost anything is also available on Deezer, downloading a lossless version from there is usually preferable.