File protection
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Tomica
Guest





Posted: Sun Apr 17, 2005 5:38 pm    Post subject: File protection Reply with quote

Hi

can anyone please tel me if there is a free version of a software for
password file protection in Autocad. That is that someone can view a drawing
but cannot edit it if one does not know the password.

Thank you very much for your information

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R.K. McSwain
Guest





Posted: Mon Apr 18, 2005 3:10 am    Post subject: Re: File protection Reply with quote

On 4/17/2005 12:38 PM Tomica wrote:
Quote:
Hi

can anyone please tel me if there is a free version of a software for
password file protection in Autocad. That is that someone can view a drawing
but cannot edit it if one does not know the password.

No. Assuming that when you say "drawing", that you mean an AutoCAD .DWG
file.

CadLock is the only product that does what you want. It is not free.

If alternative file formats are an option - post back for many suggestions.
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Norbert Grund
Guest





Posted: Mon Apr 18, 2005 3:10 am    Post subject: Re: File protection Reply with quote

On Sun, 17 Apr 2005 19:38:24 +0200, "Tomica"
<tomislav.vrdoljak@tel.net.ba> wrote:

Quote:
That is that someone can view a drawing
but cannot edit it if one does not know the password.

PDF and DWG in pwd protected ZIP file

N.

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R.K. McSwain
Guest





Posted: Tue Apr 19, 2005 12:10 am    Post subject: Re: File protection Reply with quote

On 4/17/2005 9:59 PM Norbert Grund wrote:
Quote:
On Sun, 17 Apr 2005 19:38:24 +0200, "Tomica"
tomislav.vrdoljak@tel.net.ba> wrote:

That is that someone can view a drawing
but cannot edit it if one does not know the password.

PDF and DWG in pwd protected ZIP file

N.

How does a DWG in a pwd protected ZIP file allow someone to "view the
drawing but not edit it"?
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Jim Patrick
Guest





Posted: Tue Apr 19, 2005 8:10 am    Post subject: Re: File protection Reply with quote

R.K. McSwain wrote:

Quote:
On 4/17/2005 9:59 PM Norbert Grund wrote:
PDF and DWG in pwd protected ZIP file

How does a DWG in a pwd protected ZIP file allow someone to "view the
drawing but not edit it"?

Winzip (and other software) will open the archive, and the recipient
can see the drawing or PDF inside the archive. </sarcasm off>


Back to the original question..... Nothing can be done to perfectly
protect a drawing. CADLock works very well --the best of any
solution-- but screen captures can still reconstruct the drawing.

Printing to PDF is the cheapest solution that offers a great deal of
security, or "print" to a color-limited GIF.
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SimonLW
Guest





Posted: Tue Apr 19, 2005 4:10 pm    Post subject: Re: File protection Reply with quote

"Tomica" <tomislav.vrdoljak@tel.net.ba> wrote in message
news:d3u6lt$cb8$1@ss405.t-com.hr...
Quote:
Hi

can anyone please tel me if there is a free version of a software for
password file protection in Autocad. That is that someone can view a
drawing
but cannot edit it if one does not know the password.

Thank you very much for your information


We use PDF for 2D and 3D views. We use Navisworks Freedom viewer that the

client can install to view and walk around in 3D models we publish for them.
This way we don't have to give them the DWG unless contracted to do so.

Adobe Reader 7 now supports 3D walk through of models when published (so far
microstation supports). AutoDesk's reluctance to accept an industry standard
(PDF) can really hurt them here.
-S
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R.K. McSwain
Guest





Posted: Wed Apr 20, 2005 5:28 am    Post subject: Re: File protection Reply with quote

On 4/19/2005 7:52 AM SimonLW wrote:

Quote:
AutoDesk's reluctance to accept an industry standard
(PDF) can really hurt them here.


LOL - As far as Autodesk is concerned, DWF is the "industry standard"...
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R.K. McSwain
Guest





Posted: Wed Apr 20, 2005 5:29 am    Post subject: Re: File protection Reply with quote

On 4/18/2005 10:23 PM Jim Patrick wrote:

Quote:
Winzip (and other software) will open the archive, and the recipient
can see the drawing or PDF inside the archive. </sarcasm off

I read his post to mean "send a pdf" and a "dwg in a pwd protected zip"
- meaning 2 files.

Your answer makes even less sense.

If you give the receipent the password to open the ZIP (so he can view
the PDF), then he will have full access to the DWG file.

If you send the PDF and DWG as separate files (with the DWG in a pwd
ZIP), what's the point in sending the DWG at all?


Quote:
Back to the original question..... Nothing can be done to perfectly
protect a drawing. CADLock works very well --the best of any
solution-- but screen captures can still reconstruct the drawing.

Screen captures? LOL - That's about the most desparate measure I have
heard of.

Quote:
Printing to PDF is the cheapest solution that offers a great deal of
security, or "print" to a color-limited GIF.

PDF's can be easily converted to DXF/DWG files. A PDF created from a
scanner offers slightly more security, but no more than a TIFF or CALS file.
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Norbert Grund
Guest





Posted: Wed Apr 20, 2005 6:20 am    Post subject: Re: File protection Reply with quote

On Wed, 20 Apr 2005 00:29:51 GMT, "R.K. McSwain" <not@autodesk.com>
wrote:

Quote:
I read his post to mean "send a pdf" and a "dwg in a pwd protected zip"
- meaning 2 files.

of course.

Quote:
If you send the PDF and DWG as separate files (with the DWG in a pwd
ZIP), what's the point in sending the DWG at all?

I could imagine a useage for e.g. providing a client or inquiry with a
CD containing several 100mb of pwd protected drawings which you can
allow them to use by simply providing the appropriate pwd of a
dedicated drawing.


Quote:
PDF's can be easily converted to DXF/DWG files. A PDF created from a
scanner offers slightly more security, but no more than a TIFF or CALS file.

converting the format vectors are saved in does not automatically
mean, that the resulting DXF/DWG will show the structure (layers,
attributes, real dims etc. pp.) of the original and thus is, of
course, not much better than a vectorization of a screenshot or raster
export.

N.
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R.K. McSwain
Guest





Posted: Fri Apr 22, 2005 12:10 am    Post subject: Re: File protection Reply with quote

On 4/19/2005 8:20 PM Norbert Grund wrote:

Quote:
converting the format vectors are saved in does not automatically
mean, that the resulting DXF/DWG will show the structure (layers,
attributes, real dims etc. pp.) of the original and thus is, of
course, not much better than a vectorization of a screenshot or
raster export.


My point was that PDF's, DWF's, or any other "secure" method is like a
lock on a door. It will keep out the honest folks, but someone
determined to "break in" can and will find a way. Usually, it's more
work in the long run...

It all boils down to the ownership of the drawing. Whether that be the
electronic file, the paper copy, etc. If you are sending a DWG to a
clinet/consultant you don't trust not to steal your work, then maybe you
should find a new client/consultant. Define ownership up front. Define
who will have access to what up front.
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marin98
Guest





Posted: Fri Apr 22, 2005 12:10 am    Post subject: Re: File protection Reply with quote

Another option is to right click on the file name in windows explorer
and change its property to READ-ONLY.
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R.K. McSwain
Guest





Posted: Fri Apr 22, 2005 6:48 am    Post subject: Re: File protection Reply with quote

On 4/21/2005 6:50 PM marin98 wrote:
Quote:
Another option is to right click on the file name in windows explorer
and change its property to READ-ONLY.


Setting the O/S flag to read-only solves nothing in the original request.

This is a good way however to keep *yourself* from writing to a file
that you don't want to overwrite.
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Norbert Grund
Guest





Posted: Sat Apr 23, 2005 4:10 pm    Post subject: Re: File protection Reply with quote

On Thu, 21 Apr 2005 22:41:18 GMT, "R.K. McSwain" <not@autodesk.com>
wrote:

Quote:
My point was that PDF's, DWF's, or any other "secure" method is like a
lock on a door. It will keep out the honest folks, but someone
determined to "break in" can and will find a way. Usually, it's more
work in the long run...

as I have already mentioned, the PDF does not contain the structures
of a drawing and thus doesn't need to be protected.

Protecting it with the recent encryption options of the PDF format,
"breaking" in is very difficult and time consuming and the targeted
group, the honest fols, will not even try it.

Quote:
It all boils down to the ownership of the drawing. Whether that be the
electronic file, the paper copy, etc. If you are sending a DWG to a
clinet/consultant you don't trust not to steal your work, then maybe you
should find a new client/consultant. Define ownership up front. Define
who will have access to what up front.

of course, but this is not the point. The point is providing
non-client's as with your intellectual properties for allowing them to
use them if you want to (e.g. if the have paied etc.).

N.
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Roy Knapp
Guest





Posted: Sun May 01, 2005 4:10 pm    Post subject: Re: File protection Reply with quote

"Tomica" <tomislav.vrdoljak@tel.net.ba> wrote in
news:d3u6lt$cb8$1@ss405.t-com.hr:

Quote:
Hi

can anyone please tel me if there is a free version of a software for
password file protection in Autocad. That is that someone can view a
drawing but cannot edit it if one does not know the password.

Thank you very much for your information




**********TANGENT ALERT**********************

Writing to a PDF is what I do. But if this is not secure enough for you
then I think the free market is telling you that your intelectual property
is priced to high. Sorry. That is not going to be a poplular opinion.

If your product were priced "correctly" it would not be worth SO MUCH
EFFORT to steal.

You think?
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CW
Guest





Posted: Sun May 01, 2005 10:46 pm    Post subject: Re: File protection Reply with quote

This is the biggest load of BS I've seen in quite some time. Pull your head
out.

"Roy Knapp" <cbeforeK_knapp@socket.net> wrote in message
news:Xns96496DD1ADD6Croynish@216.168.3.44...
Quote:

Writing to a PDF is what I do. But if this is not secure enough for you
then I think the free market is telling you that your intelectual property
is priced to high. Sorry. That is not going to be a poplular opinion.

If your product were priced "correctly" it would not be worth SO MUCH
EFFORT to steal.

You think?
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