Cannot insert key to open protected PDF

[paolo-S]

I have two protected PDF with the regular license keys; I can load them on an iPad but cannot enter the key....

When I open the PDF with IOS Adobe PDF I see the first page with the following text

1) This is a protectedpdf document, please enter your license key and click login (gray background)

2) License Key and the typing box

3) Login button

4) next pages of pdf documents  say "This page is protected, to acces this content please click this link to jump to fornt page"  Link is not working....

I haven't  found a way to start typing in the box the license key I have with me. Can anyone help ?

On a PC everything works fine, I can open both files insert the key and read the document.

Thanks Paolo

[MobileDeveloperCK · Accepted solution]

Hi paolo-S​,

Do you know which third-party app was used to add protection to the PDF documents?

Acrobat Reader mobile apps (iOS, Android, and Windows Phone) do not support third-party DRM (Document Rights Management) protected PDF documents. 

Example: "protectedpdf" by Vitrium (not Adobe)

As a workaround, please use the desktop version of Acrobat Reader on a Windows or Mac computer to open the protected PDF documents.

Sorry for the inconvenience.

[paolo-S]

Hi MobileDeveloper CK,

thanks for answer.

I can open both file on PC without any problem using acrobat reader.

Checking on the PC the document properties I found that the protection was  generated with Vitrium Systems - protectedpdf
version 6.2.1.R4189

So I guess this is the answer: unsupported third party plug-in......  Is this something you plan to fix or support in the near term ?

Best regards

Paolo

[MobileDeveloperCK]

Hi paolo-S​,

I am not able to speculate on any future plans for the Acrobat Reader for iPhone and iPad app.  However, Acrobat Reader mobile apps have not supported any third-party DRM technologies (such as "protectedpdf" by Vitrium Systems) in the past several years.

If you'd like, please submit a feature request using the following online form.

Adobe Acrobat for iPhone and iPad - Feature Request/Bug Report Form

Our Product Management team will take your request into consideration for future releases of Acrobat Reader mobile apps.

Thank you.