PDF encryption and password

[Rocky]

I have three issues.

a) a PDF has an open password, and I encrypted compatible with Acrobat v5.
When I display that, I get the status PdfPasswordNeeded
But if I know the password, is there a way to provide it programmatically so that I can view the pdf with the viewer ?

b) a PDF has an open password, and I encrypted compatible with Acrobat 7 and later.
When I display that, I get the status PdfCanNotBeDecrypted.

any plan to support PDF encrypted compatible with Acrobat 7 and later ?

c) I have a pdf that I got on the web, and that I can open with Acrobat Reader.
I know that something is probably wrong with this pdf, since I have an application that generates a png out of the first page, and it takes much more time then normal to achieve that on that sample

But when I try to open that pdf with the viewer, it crashes, and it is impossible to view another document after that. I'm using vb.net

paperless.zip

(638.28 KiB) Downloaded 65 times

[Loïc]

Hi,

a) a PDF has an open password, and I encrypted compatible with Acrobat v5.
When I display that, I get the status PdfPasswordNeeded
But if I know the password, is there a way to provide it programmatically so that I can view the pdf with the viewer ?

Yes you can. You need to use the DisplayFromPdfFile() method. This method has an optional parameter which allows you to specify the PDF password.

b) a PDF has an open password, and I encrypted compatible with Acrobat 7 and later.
When I display that, I get the status PdfCanNotBeDecrypted.

any plan to support PDF encrypted compatible with Acrobat 7 and later ?

This feature is not yet available but are into our RoadMap. I think it will be available within few months.

c) I have a pdf that I got on the web, and that I can open with Acrobat Reader.
I know that something is probably wrong with this pdf, since I have an application that generates a png out of the first page, and it takes much more time then normal to achieve that on that sample

But when I try to open that pdf with the viewer, it crashes, and it is impossible to view another document after that. I'm using vb.net

I was able to open this file with the next release of the viewer (not yet available) which contains PDF viewing improvements. This release will be available within 3 or 4 days.

Best regards,

Loïc Carrère

[Loïc]

Hi,

PDF encryption compatible with Acrobat 7 and later are now available.

Best regards,

Loïc