How can I Remove Security?

[Dorwol]

I see, there is a command for doing this...

Code: Select all

ctrl.DoDocumentVerb(docId, "", "RemoveSecurity", dataIn, NULL, PXCVA_NoUI);
// if success - save document without security
ctrl.SaveDocument(docId);

But where do I set the special owner password after opening the document for calling RemoveSecurity?

I your documentation, I read: "For example, if the document is the password-protected then you should specify the special *owner
password for opening."

*OpenDocument will only allow a "OpenPassword" but no way to set the "OwnerPassword".

[Stefan - PDF-XChange]

Hello Dorwol,

A PDF could have two passwords - a user and owner one. It could be that the PDF has an empty user password and an arbitrary owner one - if you open the file with empty password in this case you won't be able to change (remove) the security restrictions, and if you open it with the owner password - the RemoveSecurity will work.

Best,
Stefan

[Dorwol]

NO WAY

1. Document has NO user-PW
2. Dokument has a Owner-PW ("test")

Please try it...

Code: Select all

sMyOwnerPW = "test"
Viewer.OpenDocument sFileName, sMyOwnerPW, 0, PXCVA_NoUI    ' Are you sure, that OpenPW = OwnerPW if UserPW is empty!?
Viewer.DoDocumentVerb 0, "", "RemoveSecurity", DataIn, Null, PXCVA_NoUI
Viewer.SaveDocument 0, sNewFileName, PXCVA_DocumentSaveCopyAs, PXCVA_Sync Or PXCVA_NoUI

Result is still a protected document!

So please, what do I wrong?

[John - Tracker Supp]

Please send an example file (zipped) thanks

[Dorwol]

??? example file ???

I'm not sure what do you mean because the complete code I have already posted.

But OK, please see the attached example-code (exactly the same...!)

[John - Tracker Supp]

Dorwol,

If you want prompt answers - we do need all information and samples - otherwise our team have to spend valuable time potentially recreating a sample PDF and application to provide an answer - if you are happy to wait until someone has the time to do all this - just let us know and we will place it into the queue that things go when where we cannot quickly test and get to the bottom of it - the choice is yours.

Time is at an absolute premium here at the moment preparing new releases and products - the staff that answer these questions have to be interrupted from doing their primary job to do so - and we try and minimise the 'down time' by ensuring we have as complete a set of info as we can - so you can an expedited answer and they can test and answer quickly.

Please understand we ask such annoying questions for good reason - not to simply irritate you ...

[Dorwol]

Dorwol,

If you want prompt answers - we do need all information and samples - otherwise our team have to spend valuable time potentially recreating a sample PDF and application to provide an answer - if you are happy to wait until someone has the time to do all this - just let us know and we will place it into the queue that things go when where we cannot quickly test and get to the bottom of it - the choice is yours.

Time is at an absolute premium here at the moment preparing new releases and products - the staff that answer these questions have to be interrupted from doing their primary job to do so - and we try and minimise the 'down time' by ensuring we have as complete a set of info as we can - so you can an expedited answer and they can test and answer quickly.

Please understand we ask such annoying questions for good reason - not to simply irritate you ...

Sorry, but up to the present moment I was thinking, that there is no bug or prblem with the viewer - I was thinking there is only a code-mistake from me. I was not aware that you test the code yet to need. So please let me know, if you need further infos/code samples!

[John - Tracker Supp]

I am not saying there is or is not a bug - I am just saying that to ensure we can answer fully and quickly - we do need as much info to test and reproduce the problem - so then we can say - its your code or no - its our bug.

Thanks for your your understanding.

[Vasyl - PDF-XChange]

Hi, Dorwol.

We have found one small but annoying bug with 'OpenDocument'. Current behavior is: if document is secured the viewer firstly will try to open it with empty password and if success - will ignore the non-empty 'owner' password passed from you. Sure - it is wrong behavior and we will fix it in the next build. Currently you may use next workaround:

Viewer.OpenDocument sFileName, "", 0, PXCVA_NoUI
Viewer.DoDocumentVerb 0, "", "RemoveSecurity", DataIn, Null, 0 // use it without PXCVA_NoUI ! it will ask the 'owner' password...
Viewer.SaveDocument 0, sNewFileName, PXCVA_DocumentSaveCopyAs, PXCVA_Sync Or PXCVA_NoUI

HTH.

[Dorwol]

Viewer.DoDocumentVerb 0, "", "RemoveSecurity", DataIn, Null, 0 // use it without PXCVA_NoUI ! it will ask the 'owner' password...

Thank you for Lightspeed answer. But the Owner PW is very secret and comes AES crypted from the database. I can not prompt a dialog for entry it.

So I think I must wait for next build

What do you think, the next build will be released?

@Paul, Stefan: Thanks to you too for very fast help!

[Stefan - PDF-XChange]

Hi Dorwol,

When The Viewer prompts you for the password - you can capture the
Prompts.EnterDocumentPassword
Event pass the password from the database without any user interaction.

I do not have any specific date for the next build yet - but will let you know as soon as I do

Best,
Stefan

[Dorwol]

> you can capture the Prompts.EnterDocumentPassword
But how?

Do you have a little sample-code for me please?

[Stefan - PDF-XChange]

The below is with the C# syntax but I hope it's pretty clear:

Code: Select all

private void axCoPDFXCview1_OnEvent(object sender, AxPDFXCviewAxLib._IPDFXCviewEvents_OnEventEvent e)
{
    switch(e.type)
    {
    case (int)PDFXCviewAxLib.PXCVA_EventTypes.PXCVA_OnDisplayPrompt:
        {
            if (e.name == "Prompts.EnterDocumentPassword")
            {
                object vDataIn = "test"; //Your document's Author password
                axCoPDFXCview1.SetProperty("Prompts.EnterDocumentPassword.Password", vDataIn, 0);
                axCoPDFXCview1.SetProperty("Prompts.EnterDocumentPassword.UserChoice", 1, 0);
            }
            break;
        }
    }            
}