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protect autocad designs

  • Thread starter Thread starter comasco71
  • Start date Start date

comasco71

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Bye to all,
with the present I would like to know if there is a method to protect the drawings made with autocad 2008 by writing but not by reading.
I tried with the tools from the save window by name, but with this command also only to see the design must enter the password.
cordially
Comasco
 
comasco71 said:
Bye to all,
with the present I would like to know if there is a method to protect the drawings made with autocad 2008 by writing but not by reading.
I tried with the tools from the save window by name, but with this command also only to see the design must enter the password.
cordially
Comasco
Click to expand...
No. save it in pdf or dwf if you just want to allow reading
 
with dx button on file to explore resources you can check "read only",
so you can open it, edit it but not save the changes.

Of course anyone can remove the check to "read only" unless they put restrictions as a network administrator, but here they are not helping.

In short, it depends on what you need, if it's just a scruple to not mistakenly edit it can go, otherwise, as they recommended you the pdf is the maximum.

bye
 
Thank you guys for your help.
I try to explain my question better: My intent is to create a password as you do in excel or in word in order to send dwg to various people while avoiding both copying and editing (sometimes of just cartilage).
What do you think of xrifs?
 
xrif?
You're confused with other English. .
Maybe you meant dwf
However, by experience, they are scruples little more than useless
if you give the pdf, there are programs that you reconvert it to dwg in a few minutes
if you give the dwf, admitted not to have the specific conversion program, mold in pdf and I find myself in the case above.. .
there would be only a system, which does not prevent copying but generates strong incazzocity from those who try....
 
I rasterizzo the whole amount as image in autocad and give the entire folder consisting of the dwg file and its jpg and tif
MBT said:
xrif?
there would be only a system, which does not prevent copying but generates strong incazzocity from those who try....
Click to expand...
Infatti:biggrin:biggrin:
 
free alternative that at least makes s-protection complicated:
http://www.dotsoft.com/public/deter.vlx
a strong deterrent to prevent changes (by others) to the drawing because it can’t be exploded or refedited. be careful to use only on a copy of your drawing you intend to send to others!
 
Thanks for the help, guys.
mbt, I meant the xrifs, try typing it in autocad, thread a block and save the design.
then reopen it and try to change it
 
Yeah, good.
But who receives the drawing must receive also all related xrifs. . .
otherwise it does not open the drawing!
And if you give him the xrif, you're always the boss!
 
from the options menu, file, find password protection and digital signature options.
This command exists from the 2004 version and should also be in the 2008 version.

this password will not allow you to open the design in any way, so you will have to communicate it to the person who will then open it and/or change it.
If you want to send a read-only file, the dwf is fine without vector info. .
 
MBT said:
Yeah, good.
But who receives the drawing must receive also all related xrifs. . .
otherwise it does not open the drawing!
Click to expand...
it is not so; the design opens it but does not see the external references...however the concept is right: if you do not pass the external references dwg gives it an incomplete design that serves little, and if you give it back to the starting point! :wink:
 
I have been working on protection for autocad files sent to customers for some time.
often happens that at the time of starting the yard there is always some subject that uses an obsolete design.
this protection simply prevents the display of a file with old revision number or with expired date. in practice forces the above subject, to request an updated design.

is based on the use of a particular file lisp called acaddoc.lsp and on the preparation of the dwg file. here is the explanation (also present in the lisp):

;
;
; it is necessary to prepare the dwg file to be protected as follows:
;
; - turn off all layers ... making the design look completely empty
;
; - save an entire value (e.g. 3) in the useri1 variable
; (type directly useri1 from command: then give value 3 and save the design)
;
; - in this lisp insert the accepted numerical value (e.g. 3): that is the number of revision
;
; - in this lisp insert the expiry date (20121221) 21 December 2012 (the end of the Mayan calendar! )
;
; - fill out this lisp or at least purify it of comments to make it unreadable to the average user.
;
; if the open file has valid useri1, check the date. if this is less than 21/12/2012 opens the design
; otherwise erases all entities (the fact that the layers are turned off contributes to deceiving the user and
; to speed up the operation); then sends a message that invites you to request an updated file.
;
; if the file has a useri1 = or greater than 3 it can be opened, if instead it will have useri1 = 1 or 2
It will no longer be considered valid even if the expiry date has not yet been reached.
;
; "normal" files (not protected) have by default useri1 = 0 so they are always accepted (no data count)
;
; this system can be used to obsolete all files with an old revision number
; (by sending the update, the old files will no longer be readable)
; but also make unreadable a file that has not been opened for so long: in this way will be the user who
; will require to get the updated version, as its no longer works!
;
; of course it is necessary to find the way to always put acaddoc.lsp in a folder in the recognized path
; by autocad or in the same folder of the dwg. in the latter case however .... you run the risk of being discovered:
; if the user cancels acaddoc.lsp or moves the dwg .... goodbye protection!
; much better to put the acaddoc.lsp file in a folder recognized by autocad: so it works everywhere both the dwg.
In order to achieve this, both the dwg and the lisp in rar format could be compressed.
; and also do a number of "hidden" operations like saving the dwg in one folder and lsp in another
; (e.g.:\programs\autocad 2010\). but here comes the problem: you need to find a system that allows
; to establish which version of autocad is using the user, so as to save the file in the correct folder.
;
; you can do by performing a batch containing the following dos commands:
;
; set var=%cd% assigns to a var. the value and:\ (supposing and: removable unit)
;
; %drivesystem% si posiz. on system disk: generating c: but it could also be d:
;
; cd %programfiles% moves to c:\programs
;
; cd autocad* moves to the autocad folder ... (e.g. "autocad 2010")
;
; xcopy %var%\acaddoc.lsp /y /q copy and:\acaddoc.lsp from removib. (/y = overwrite - /q = no echo)
;
; cd %userprofile%\desktop the following rows are optional: move to the desktop ...
;
; xcopy %var%\disegno.dwg /y /q copy and:\disegno.dwg from removable desktop (/y and /q hide operation)
;
; drawing.dwg writing the name, the file is opened (the one saved on desktop)
;
;
; surely a "unmatched" user can easily bypass this protection: after clicking on the message ok
; error announcing that the design has expired; just write the "oops" command to restore deleted entities
; followed by a layer command to turn on everything and display the design. of course then it would be necessary to carry to 0
; the value of useri1 to no longer have this problem at the next opening of the file, but this is already a bit
; harder to find out!
;
 

Attachments

x11... if you pass to me a dwg, which overwrites (addressing with quiet) my acaddoc.lsp, then I come to look for you throughout the Piedmont....:biggrin:
you can have the right to "play" with your drawings.. but not with my pc:smile:
 
the idea of x11start contains some brilliant intuition but all the procedure for obtaining acute protection and all the risks of data loss that are connected to it affect the overall value.
when I began studying the topic "Dwg file protection" inspired by similar insights, but I decided almost immediately to abandon this road and to focus on more immediate, automatic and "user friendly" solutions, not least easily distributed to third parties.
Until now my free dwgprotect 2008 program has been one of the most simple and flexible existing solutions in terms of use.
dwgprotect does not require any kind of installation and when loaded
(also by drag-and-drop mode) initiates a wizard to auto-code/decode.
and certainly is a solution that also guarantees a discreet level of protection for the majority of autocad users.

dwgprotect:http://www.fabriziobattistini.110mb.com/dwgprotect2008.zip
 
Giuseppe Mauro said:
x11... if you pass to me a dwg, which overwrites (addressing with quiet) my acaddoc.lsp, then I come to look for you throughout the Piedmont....:biggrin:
you can have the right to "play" with your drawings.. but not with my pc:smile:
Click to expand...
I didn't say this is the perfect solution! already the fact of having to use a second file (acaddoc.lsp) and not enclose protection in the dwg, is a negative fact! I thought, however, to propose it to the forum, so that someone could take inspiration and implement the same kind of protection. in particular I do not care to prevent the printing of a dwg, but to force the user to request an updated file, if it is exceeded a certain date or if there is a dwg with no revision major.... I do not know if arklisp could implement these things in his dwgprotect2008!
 

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