[pdftex] PTEX.FileName contains file system information
Reinhard Kotucha
reinhard.kotucha at web.de
Tue Aug 7 22:11:28 CEST 2007
Stephan Hennig writes:
> Reinhard Kotucha schrieb:
>> If you are concerned about security you should encrypt the file.
>> This is the only way to make a PDF file "readonly". A very good tool
>> is pdftk.
> What kind of encryption do you have in mind (I do not really know much
> about PDF encryption)? Does Adobe's access control prevent someone from
> looking at a file with an editor?
You still can load an encrypted file into your favorite editor but...
> Speaking about file encryption, for most of my files, I do not like to
> distribute a password along with the file. Anybody, even search
> engines, should by able to read the files I put into public without any
> barrier.
pdftk allows you to set an owner password and/or a user password.
If you only set the owner password, the file is encrypted and no
modifications are allowed. But the recipient doesn't have to enter a
password.
However, you can bother people by setting a user password.
Encrypted files have a lot of restrictions and you have to tell pdftk
to allow certain things. Printing is disallowed by default if the
file is encrypted. If you want to allow printing, say:
pdftk infile.pdf output outfile.pdf owner_pw "YzkQh5e" allow Printing
See http://accesspdf.com/pdftk
pdftk can do much more.
Regards,
Reinhard
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