Operation Manual

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Multimedia and 3D models
Last updated 4/7/2015
Multimedia Trust preferences (legacy)
Acrobat and Reader play most multimedia files, such as audio or video, using the built-in media player. (For the
supported file types, see
Supported video, audio, and interactive formats.) Multimedia content that requires additional
resources to play, such as an external player or plug-in, is considered “legacy” multimedia content. You can control the
use of external players or plug-ins in the Multimedia Trust (Legacy) preferences.
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Multimedia Trust (Legacy)
(Acrobat and Reader 10.1.1 or earlier) In Multimedia Trust preferences, you can specify whether to play embedded
multimedia files in trusted or non trusted PDF documents. A trusted document is a document that you or an author
you trust has approved. By setting your permissions to play multimedia only in trusted documents, you can prevent
programs, macros, and viruses from potentially damaging your computer.
The list of trusted documents and authors is stored internally and can’t be viewed. If you add a certified document to
the list, both the document and the certificate of the author are added to the list of trusted documents. All documents
that this author certified are trusted. (Trusted documents also include PDFs from authors in your list of trusted
identities.)
In the Preferences dialog box, select Multimedia Trust (Legacy) from the Categories.
(Acrobat and Reader 10.1.1 or earlier) Display Permissions For Choose to set permissions for either trusted documents
or other (non trusted) documents.
Allow Multimedia Operations Select this option to allow media clips to be played. When selected, you can change the
permission settings for a particular player and enable options that determine the appearance of the media during
playback.
Change Permission For Selected Multimedia Player To Select the player from the list, and then choose one of the
following options from the menu:
Always Allows the player to be used without prompting.
Never Prevents the player from being used.
Prompt Asks the user whether the player can be used. If you select this option and allow the player to play the media
in a particular document, that document becomes trusted.
Allow Playback Options Three playback options enable you to control how the video is displayed.
Allow Playback In A Floating Window With No Title Bars Select this option to run the video without a title bar. The
result is that no title or close buttons are displayed.
Allow Document To Set Title Text In A Floating Playback Window Select this option to display a title bar when the video
plays back in a floating window. To edit the text in the title bar, double-click the video with the Select Object Tool (Tools
> Interactive Objects > Select Object). Select Edit Rendition, and then on the Playback Location tab, select Show Title
Bar. Add the title bar text in the Title text field.
Allow Playback In Full-Screen Window This option automatically plays the video in full screen mode when it is played
back. Full screen display can conflict with end-user security settings.