Re: Make pdf document commentable

On Wed, 03 Oct 2007 17:14:00 GMT
quite@xxxxxxxxxxxxxx (Aandi Inston) wrote:

Eugen wrote:

.... I managed to set a user password (to open the file)
and an owner password (to modify it). When I open the file in Acrobat
Reader (version 8), I'm prompted to give the password. Then I can
view the security settings, and they are all 'not allowed' (except
filling forms), and when I go to the 'show details' in the security
tab, I can see the permissions I have specified, especially
commenting allowed.

I conclude, it seems to be possible to add the attribute 'commenting
allowed' to an existing unsecured PDF, but I wonder why acrobat does
not give me the owner status although I entered the password.

There isn't any magic "owner status" in Reader that overcomes the
limitations that are otherwise there.

I used the following command (tool 'pdftk', OS Linux) to change the
security settings of the file 'input.pdf':

<code>
pdftk input.pdf output file.pdf owner_pw Eugen user_pw User \
allow modifyannotations
</code>

This generated the new file 'file.pdf'. The tool 'pdfinfo' tells me

Title: The Title
Subject:
Keywords:
Author:
Creator: LaTeX with hyperref package
Producer: pdfeTeX-1.21a
CreationDate: Wed Oct 3 20:04:09 2007
Tagged: no
Pages: 160
Encrypted: yes (print:no copy:no change:no addNotes:yes)
Page size: 595.276 x 841.89 pts (A4)
File size: 3430972 bytes
Optimized: no
PDF version: 1.4

Acrobat reader also tells me this when I ask to show me the security
details. So obviously, the attribute is present.

If someone can help here, we perhaps have a solution.

Acrobat Professional will let you add this option for files in Reader.

This is not helpful. The attribute is set in the file, the pdftk tool
has changed the attributes, the reader can open the (encrypted) file
(after giving either the user/open or the owner/modify passwort). I
quite doubt that the tool only fakes to set these attributes and that
the reader only pretends to recognise this attribute set, and also that
only Acrobat Professional can set it.

Is there someone outside not intending to sell copies of Acrobat
Professional to poor private users?

Eugen

--
Eugen <news ... @ ... lamers-home.de>
.

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