adobe cannot open the file attachment because your pdf file attachment settings do not allow

[sureshbabu sekar]

adobe acrobat dc cannot open the file attachment because your pdf file attachment settings do not allow this Can you please help on this it's very urgent for me

Please find the erroe screenshot as below:

[CHMprepress]

It seems you are trying to op a .zip file in Acrobat, that wil not work.

[ProlificUser · Accepted solution]

You need to edit the Registry to allow Zip files to be opened in Acrobat DC. Please follow the steps below:

1. 1) Choose Start > Run.

2) Type “regedit” into the “Open” box and click OK to start the Windows registry editor.

3) Navigate to the following registry key: HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms
4) Double-click the following value: sBuiltInPermList

5) In the Value Data field, locate the file type extension (.zip).

6) Change the number directly after the file type extension to 1

That should do it. Zip files will open after that. 

[jugal2535380529wf]

Thanks it did work.. cheers

[Swapnil Shah - Archer]

It is not working. It was working before but now it is not. Can you please provide any other solution ?

Error is attached.

[Béla280177134vj9]

I use Windows 10 22H2 and the latest Adobe Acrobat Reader DC at registry (HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms and at  HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat Reader\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms in tBuiltInPermList is zip allowed (zip:1) but works not. 

It's only with this new Acrobat Reader version, before with older version was it working!

Please help!!

[ajitc36183110]

till last month it was working now this registry change is also not working. I am using windows 11. and latest adobe DC

[Naveen29252823czui]

Make follwing changes to registry and it should work.

1. Modify value data as zip:1 under tBuiltInPermList  in the below path

        HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms and at  HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat Reader\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms\tBuiltInPermList

2. Add value data |zip under tSearchAttachmentsWhiteList  in the below path

HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms and at  HKEY_LOCAL_MACHINE\software\policies\adobe\AdobeAcrobat Reader\DC\FeatureLockDown\cDefaultLaunchAttachmentPerms\tSearchAttachmentsWhiteList

[Jan34431549dc6t]

I did all registry changes still not working.

[Serene_nature15C3 · Accepted solution]

Hi @Jan34431549dc6t 

Have you started experiencing this issue recently after the new update?

What is the version of the Acrobat DC you are using? To check the version, go to Help > About Acrobat and make sure you have the recent version 23.08.2042X installed. Go to Help > Check for updates and reboot the computer once.

Also, try to repair the installation from the help menu (Win Only) and see if that works.

Please try to reset the Acrobat preferences as described here https://community.adobe.com/t5/acrobat-discussions/how-to-reset-acrobat-preference-settings-to-defau... and see if that works.

~Amal

[Matt25405926ubnb]

Thank you! Worked for me Jul 2024.

[J Avila]

Thanks! Worked for me as of April 2024

[abhishek_1327]

It worked for me September 2024

[Luke_Jennings]

You can drag the attachment to your desktop and un-zip it, but you might not want to after you read this:

https://helpx.adobe.com/acrobat/using/attachments-security-risks-reader-acrobat.html

[Serene_nature15C3]

Hi Sureshbabu, 

We are sorry for the trouble. 

++ Adding to the discussion

Attachments represent a potential security risk because they can contain malicious content, open other dangerous files, or launch applications. Acrobat and Acrobat Reader always let you open and save PDF and FDF file attachments. Acrobat and Acrobat Reader recognize certain files, such as those whose names end in .bin, .exe, and .bat, as threats.

Acrobat and Acrobat Reader maintain a white list of file types that can be opened or saved, and a black list of file types that cannot. You are allowed to attach file types that are not on either list. However, when you open or save a file of an “unrecognized” type, you see a dialog box asking whether you trust the file type.

For more information please refer to the help article (https://helpx.adobe.com/in/acrobat/using/attachments-security-risks-reader-acrobat.html)

Let us know how it goes

Regards

Amal

[Lui3788418180et]

I have followed this guide and I am still unable to open an attachment within acrobat reader, please help

[Serene_nature15C3]

Hi there,

Have you tried the steps suggested in the correct answer shared above? Let us know how it goes and what happens when you try to open the attachment.

~Amal

[JR Boulay]

Acrobat allows to embed ZIP files but it doesn't allows them to be exported (unless you hack the registry as described above).

Embedding a ZIP file is useless since anything placed as an attchment in a PDF file is immediately zipped.

See this article: https://translate.google.fr/translate?sl=fr&tl=en&u=https%3A%2F%2Fwww.abracadabrapdf.net%2Fressource...