Adobe Acrobat SDK
Implementation Notes
Adobe® Supplement to the ISO 32000
Implementation Notes to the PDF Reference, sixth edition 126
on page 262”), Acrobat 5.0 viewers incorrectly treat
hival
as the number of colors rather than the
number of colors - 1. Acrobat 6.0 can handle this case properly, as well as the correct value of
hival
; for
compatibility with 5.0 viewers, it is necessary to specify
hival
as the number of colors.
Also, Acrobat viewers do not support authoring or rendering posters when the value of
Poster
is
true
.
153. Acrobat viewers treat a
FWScale
value of [999 1] as full screen.
154. Acrobat viewers never allow any portion of a floating window to be offscreen.
9.4 Alternate Presentations
155. The PDF language contains no direct method of initiating an alternate presentation-defined slide
show. Instead, a slide show is invoked by a JavaScript call that is typically triggered by an interactive
form element. (See Section 8.6, “Interactive Forms.”) See the
JavaScript for Acrobat API Reference
(see the
Bibliography
) for information about starting and stopping a slide show using JavaScript.
156. Beginning with Acrobat 8.1, Acrobat no longer provides support for SVG slide shows.
Acrobat 5.1 through 8.0 support SVG slide shows (MIME content type image/svg+xml). Those versions of
Acrobat support the Scalable Vector Graphics (SVG) 1.0 Specification defined by the W3C (see the
Bibliography). Implementation notes on support of SVG by Adobe products are available at
<http://www.adobe.com/svg/>.
All resources must be either image XObjects (see Section 4.8.4, “Image Dictionaries”) or embedded file
streams (see Section 3.10.3, “Embedded File Streams”).
●
Image XObjects used for slide shows must use the DCTDecode filter and a Device RGB color space.
Color profile information must be specified in the image XObject dictionary as well as embedded
within the stream.
●
Embedded audio files must be of type .wav (supported on Windows only, MIME type audio/x-wav) or
.mp3 (MIME type audio/mpeg, documented at <http://www.chiariglione.org/mpeg/index.htm>).
●
Embedded video must be QuickTime-compatible files of type .avi (MIME type video/ms-video) or .mov
(MIME type video/quicktime, documented on Apple’s Developer Connection site at
<http://developer.apple.com>. To play video, a QuickTime player (version 3 or later) must be installed.
9.5 3D Artwork
157. Acrobat viewers earlier than version 7.0.7 did not honor the
U3DPath
entry of a 3D view dictionary.
Acrobat 7.0.7 supports text string values for this entry and deprecates the use of an array for its value.
158. PDF 1.7 introduced several new dictionaries for controlling the appearance and behavior of 3D artwork
and for enabling markup annotations on 3D views. Although Acrobat 7.0 officially supports PDF 1.6,
Acrobat 7.0.7 also supports these new dictionaries.
10.1 Procedure Sets
159. Acrobat viewers earlier than version 5.0 respond to requests for unknown procedure sets by warning
the user that a required procedure set is unavailable and canceling the printing operation. Acrobat 5.0
and later ignores procedure sets.
