How to identify pdf is password protected?

[vivekpatel]

Hello,

How to identify the pdf file is password protected? any property for that?

[Will - Tracker Supp]

Hi Vivek,

Thanks for the post - You have posted in the End User Editor forum. Are you looking to do this programmatically via the SDK, or did you mean to post in the End User forums?

Thanks,

[vivekpatel]

Hello,

yes, pragmatically with SDK.

[Will - Tracker Supp]

Hi Vivek,

I've moved your post to the appropriate forum and will forward this on for further comment.

Thanks,

[Sasha - Tracker Dev Team]

Hello vivekpatel,

Please provide a better explanation for such a questions so that we can advice further.
1) Is the document already opened or is it a file on disk that you want to open?
2) What do you need this for exactly?
3) Do you need to check whether the password itself is present or just check some security permissions?

Cheers,
Alex

[vivekpatel]

Hello,

I have password protected file, i open this file in pdf tracker and it shows passsword window.
How to detect file is password protected or not before open to edit?
i want to check this programmatically in vb.net.

[Sasha - Tracker Dev Team]

This code should help:

Code: Select all

public class AuthCallback : PDFXEdit.IPXC_DocAuthCallback
{
	public void AuthDoc(PDFXEdit.IPXC_Document pDoc, uint nFlags)
	{
		//If this method is called then the document is protected
	}
}

private void checkForPasswordToolStripMenuItem_Click(object sender, EventArgs e)
{
	AuthCallback clbk = new AuthCallback();
	pxcInst.OpenDocumentFromFile(@"D:\Test.pdf", clbk);
}

Cheers,
Alex

[vivekpatel]

Hello,
It is possible to identify that the document is password protected using "PDF Core Enumerations " ---> https://sdkhelp.pdf-xchange.com/vie ... umerations
Thanks.

[Sasha - Tracker Dev Team]

Hello vivekpatel,

No, that is not possible. For the solution, check my previous reply.

Cheers,
Alex

[vivekpatel]

Thanks.

[Sasha - Tracker Dev Team]

[prasantha]

This code should help:

Code: Select all

public class AuthCallback : PDFXEdit.IPXC_DocAuthCallback
{
	public void AuthDoc(PDFXEdit.IPXC_Document pDoc, uint nFlags)
	{
		//If this method is called then the document is protected
	}
}

private void checkForPasswordToolStripMenuItem_Click(object sender, EventArgs e)
{
	AuthCallback clbk = new AuthCallback();
	pxcInst.OpenDocumentFromFile(@"D:\Test.pdf", clbk);
}

Cheers,
Alex

HI,
I am developing application using c# and I cant find respective method in c#. So could you let me know how can i do this check in c#?

[Tracker Supp-Stefan]

Hello prasantha,

Are you using the Viewer or Editor SDK?
The above discussed methods are from the Editor SDK - and they should be available irrespective of the programming language you use.
You might need to modify the above code to implement it in your own project, but that should be pretty straight forward for the above discussed methods.

Kind regards,
Stefan

[prasantha]

Thank you for your response.
I am refering to the editor SDK. But I cant see the respetive method in c#.
Below are the available methods related to open file.

So i cant see a method to pass a callhback function or return value.

[Tracker Supp-Stefan]

Hello prasantha,

Ahh - I thought you are having problems with the IPXC_DocAuthCallback

The posts above yours are 5+ years old - so it seems like OpenDocFromFile has been changed to OpenDocFromPath. Please use the open from path method instead and all should be well:
https://sdkhelp.pdf-xchange.com/vi ... ocFromPath

Kind regards,
Stefan

[prasantha]

So using above method, I cant check whether the documetn is password protected or not. Is there any other open method which return whether the document is password protected or not? Becuase currently I have used seperate methods to check whether the documetn is password protected and then another method to open the file. it hurts the performance of the large file opening. So i m looking for a method that both check and open can be done in a single call.

[zarkogajic]

Hi,

Do you need to open a document as PXC or PXV document?

You can use op.openDoc with "NoAuth = true" to get the PXCDocument. If that operation throws an exception and if the exception is "HResult($FFFFFFFF82141008)" - the document is password protected.

p.s.
unchecked((int)0x82141008)

-žarko

[TrackerSupp-Daniel]