Purpose

Creating PDF exports in Confluence can impact and seriously degrade system performance, as described in the KB article: Exporting page or space to PDF fails and causes high load or OutOfMemory Error. To prevent performance issues, you may wish to limit the ability to export within Confluence to System Administrators and Space Administrators only, or disable the ability all together.

Solution

Disable PDF Space Exports

PDF Space exports can be entirely disabled with the below steps

1. Go to Confluence Admin > General Configuration
2. Choose Manage Add-ons from the left hand panel
3. Select All Add-ons from drop-down menu
4. Search for Confluence PDF Export
5. Click 18 of 18 modules enabled to expand the module list
6. Mouse over XML Export Format
7. Click on Disable on the right side
8. PDF Space exports are now disabled globally

Restrict Space Exports to Confluence Administrators and Space Administrators

Create default Space Permissions for new Spaces

1. Go to Confluence Admin > General Configuration
2. Select Space Permissions from the left-hand panel
3. Click the Edit Permissions button
4. Edit the Default Permissions for the confluence-users group
5. Uncheck the Space/Export permission
6. Click Save

Change Permissions on existing Spaces

1. Choose Confluence Admin > General Configuration
2. Select Space Permissions from the left-hand panel
3. Select Manage Permissions link 
   1. This will need to be done for each Space individually
4. Click the Edit Permissions button to remove the Export permission from the group confluence-users
5. Save

How to disable attachment downloads

This guide is for informational purposes and is not eligible for support from Atlassian.  If you have any questions about the information on this page, please reach out to our community at Atlassian Answers for help. 

Purpose

To make attachments not available to download. Follow the instructions below to disable attachment downloads.

Solution

Code Changes Required

This configuration requires changing the Confluence code in your installation. You will need to reapply these changes whenever you upgrade Confluence. Proceed with caution.

At the moment, permissions for downloading attachments can't be set. To disable attachment downloading you need to edit your velocity files. Attachments can currently be downloaded in two separate ways:

• Viewing the attachments for a page
• Viewing all the attachments for a Space (Browse > Attachments)

These customizations will disable attachment downloads for all users, including administrators.

Disable attachments for a whole Space

To disable downloading attachments from a Space, you need to edit the listattachmentsforspace.vm file. Delete or comment out the following line:

<td><a name="$!generalUtil.urlEncode($!attachment.content.displayTitle)-attachment-$!generalUtil.urlEncode($!attachment.fileName)">#parse ("/pages/includes/attachment_icon.vm")</a> <a href="$req.contextPath$!attachment.downloadPathWithoutVersion">$generalUtil.shortenString($attachment.fileName, 50)</a></td>

and replace it with either of the following two code blocks:

Disabling downloading for all attachments

<td><a name="$!generalUtil.urlEncode($!attachment.content.displayTitle)-attachment-$!generalUtil.urlEncode($!attachment.fileName)">#parse ("/pages/includes/attachment_icon.vm")</a> $generalUtil.shortenString($attachment.fileName, 50)</td>

Disabling downloading for specific file types

#set($disabledDownloads = ['ext1', 'ext2'])

#set($disabled = false)

#set($attachmentExtension = $attachment.fileExtension)

<tr id="attachment_$!attachment.id">

    #foreach($doNotDownload in $disabledDownloads)

        #if($attachmentExtension == $doNotDownload)

            #set($disabled = true)

            #break

        #end

    #end

    #if(!$disabled)

        <td><a name="$!generalUtil.urlEncode($!attachment.content.displayTitle)-attachment-$!generalUtil.urlEncode($!attachment.fileName)">#parse ("/pages/includes/attachment_icon.vm")</a> <a href="$req.contextPath$!attachment.downloadPathWithoutVersion">$generalUtil.shortenString($attachment.fileName, 50)</a></td>

    #else

        <td><a name="$!generalUtil.urlEncode($!attachment.content.displayTitle)-attachment-$!generalUtil.urlEncode($!attachment.fileName)">#parse ("/pages/includes/attachment_icon.vm")</a> $generalUtil.shortenString($attachment.fileName, 50)</td>

    #end

To specify which files you want disabled, change the

 'ext1', 'ext2' 

in the first line to the extensions for which you want to disable downloading. You can specify as many extensions as you want, as long as they are in quotes, are comma separated and do not include the '.' at the start. For example, if I did not want users to download .jpg and .doc and .png files, the line would read

#set($disabledDownloads = ['jpg', 'doc', 'png'])

Disable attachments for a specific page

If you take the steps in this section but not in the section above, the files you disable can still be downloaded by browsing all attachments for a Space.

To disable downloading attachments from a specific page, you need to edit the attachments-table.vm file. Delete or comment out the line

<a class="filename" href="$generalUtil.htmlEncode("${req.contextPath}${attachment.downloadPathWithoutVersion}")" title="$generalUtil.htmlEncodeAndReplaceSpaces($attachment.fileName)" >$generalUtil.htmlEncode($generalUtil.shortenString($attachment.fileName, 35))</a>

and replace it with either of the following two code blocks:

Disabling downloading for all attachments

$generalUtil.htmlEncode($generalUtil.shortenString($attachment.fileName, 35))

Disabling downloading for specific file types

#set($disabledDownloads = ['ext1', 'ext2'])

#set($disabled = false)

#set($attachmentExtension = $attachment.fileExtension)

#foreach($doNotDownload in $disabledDownloads)

    #if($attachmentExtension == $doNotDownload)

        #set($disabled = true)

        #break

    #end

#end

#if(!$disabled) <a class="filename" href="$generalUtil.htmlEncode("${req.contextPath}${attachment.downloadPathWithoutVersion}")" title="$generalUtil.htmlEncodeAndReplaceSpaces($attachment.fileName)" >$generalUtil.htmlEncode($generalUtil.shortenString($attachment.fileName, 35))</a>

#else $generalUtil.htmlEncode($generalUtil.shortenString($attachment.fileName, 35))

#end

Again, to specify which files you want disabled, change the

 'ext1', 'ext2' 

in the first line to the extensions for which you want to disable downloading. You can specify as many extensions as you want, as long as they are in quotes, are comma separated and do not include the '.' at the start. For example, if I did not want users to download .jpg and .doc and .png files, the line would read

#set($disabledDownloads = ['jpg', 'doc', 'png'])

Removing the 'Download All' button

If you do not take the steps in this section, users will still be able to download all attachments regardless of whether they have been disabled or not.

1. Click, then General Configuration
2. Click Stylesheet, then the Edit button
3. Add the following to the Global Stylesheet
4. a.download-all-link {
5.     display: none !important;
6. }
7. a#download-all-link {
8.     display: none !important;

}

1. Save

You can alternatively just disable Download All on a space by space basis by adding the above CSS to individual Space Stylesheets instead:

1. Go to the space and choose Space Tools > Look and Feel from the bottom of the sidebar
2. Choose Stylesheet then Edit.
3. Paste the above CSS into the text field.
4. Save

Removing the 'Download All' button  along with the 'download' Icon while previewing the attachment

You can also remove download options by suppressing HTML elements using the Custom HTML section within Confluence. While the above steps can remove the 'Download All' option, users can still manage to download the attachment by previewing it and using the 'Download Icon'. You can use the following steps to suppress both download all and download icon.

1. Go to Confluence 'gear' icon and click on 'General Configuration'
2. Go to 'Custom HTML'
3. Edit and insert the following code into the 'At end of the HEAD' section.
4. Save.
    

<style type="text/css">

     .cp-control-panel-download {

              display:none !important;

       }

     .cp-waiting-message-download {

              display:none !important;

       }

     a.download-all-link {

              display: none !important;

     }

     a#download-all-link {

              display: none !important;

     }

 </style>

Disable attachments download, export, print and other functions in specific spaces

Apr 12, 2021

Recently, some teams using Confluence have put forward more advanced requirements for information confidentiality.

These space administrators want to prohibit users from downloading, exporting, and printing attachments in designated spaces.

Last week, I checked a lot of related setting posts in the community. According to the community’s suggestions, I adjusted the space configuration for your reference.

Hide the download button on the preview page

Space Tools--Look and feel--Layout--Content Layouts---Page Layout

<style type="text/css">
     .cp-control-panel-download {
        display:none !important;
    }
       .cp-waiting-message-download {
        display:none !important;
    }
      a.download-all-link {
        display: none !important;
     }
      a#download-all-link {
        display: none !important;
     }
 </style>

Hide attachment button

Space Tools--Look and feel--Layout--Content Layouts---Main Layout

#if ($userAccessor.hasMembership('confluence-administrators', $helper.action.remoteUser.name))
#else
    <script type="text/javascript">
    AJS.toInit(function(){
        AJS.$('#view-attachments-link').hide();
        AJS.$('#view-in-hierarchy-link').hide();
        AJS.$('#content-metadata-attachments').hide();
    });
</script>
#end

#if ($userAccessor.hasMembership('confluence-administrators', $helper.action.remoteUser.name))
#else
    <script type="text/javascript">
    AJS.toInit(function(){
AJS.$('#space-tools-menu-trigger').hide();
    });
</script>
#end

disable right mouse click

Space Tools--Look and feel--Layout--Content Layouts---Page Layout

<script type="application/javascript">
 content_dom = document.getElementsByClassName("confluence-embedded-file");
 for (var i = 0; i < content_dom.length; i++) {
content_dom[i].oncontextmenu = function () {
return false;
 }
}
a_dom = document.querySelectorAll('a[data-linked-resource-type="attachment"]')
for (var i = 0; i < a_dom.length; i++) {
a_dom[i].oncontextmenu = function () {
return false;
 }
}
</script>

print out a blank page

Space Tools--Look and feel--Layout--Content Layouts---Page Layout

 <style type="text/css" media="print">
     body { visibility: hidden; display: none }
 </style>

加到最后