Adobe InDesign CC 2015 - Manual (Page 534)

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Exporting and publishing
Last updated 6/6/2015
Note : If Compatibility is set to Acrobat 6 (PDF 1.5) or later, tags are compressed for smaller file size. If the PDF is then
opened in Acrobat 4.0 or Acrobat 5.0, the tags will not be visible because those versions of Acrobat cannot decompress
tags.
View PDF After Exporting Opens the newly-created PDF file in the default PDF viewing application.
Create Acrobat Layers Saves each InDesign layer as an Acrobat layer within the PDF. Also exports any printer’s marks
you’ve included to a separate marks and bleeds layer. The layers are fully navigable, which allows users of Acrobat 6.0
and later to generate multiple versions of the file from a single PDF. For example, if a document will be published in
multiple languages, you can place the text for each language in a different layer. A prepress service provider can then
show and hide the layers to generate different versions of the document.
If you select the Create Acrobat Layers option when you export a book to PDF, identically named layers are merged by
default.
Note : Create Acrobat Layers is available only when Compatibility is set to Acrobat 6 (PDF 1.5) or later.
Export Layers Determines whether visible layers and nonprinting layers are included in the PDF. You can use the Layer
Options settings to determine whether each layer is hidden or set as nonprinting. When exporting to PDF, choose
whether you want to export All Layers (including hidden and nonprinting layers), Visible Layers (including
nonprinting layers), or Visible & Printable Layers.
Include
Bookmarks Creates bookmarks for table of contents entries, preserving the TOC levels. Bookmarks are created from
the information specified in the Bookmarks panel.
Hyperlinks Creates PDF hyperlink annotations for InDesign hyperlinks, table of contents entries, and index entries.
Visible Guides And Grids Exports margin guides, ruler guides, column guides, and baseline grids currently visible in
the document. Grids and guides export in the same color used in the document.
Non-Printing Objects Exports objects to which you have applied the Nonprinting option in the Attributes panel.
Interactive Elements Choose Include Appearance to include items such as buttons and movie posters in the PDF. To
create a PDF with interactive elements, choose the Adobe PDF (Interactive) option instead of the Adobe PDF (Print)
option. See
Export to interactive PDF options .
Compression and downsampling options for PDFs
When exporting documents to Adobe PDF, you can compress text and line art, and compress and downsample bitmap
images. Depending on the settings you choose, compression and downsampling can significantly reduce the size of a
PDF file with little or no loss of detail and precision.
The Compression area of the Export Adobe PDF dialog box is divided into three sections. Each section provides the
following options for compressing and resampling color, grayscale, or monochrome images in your artwork.
Downsampling If you plan to use the PDF file on the web, use downsampling to allow for higher compression. If you
plan to print the PDF file at high resolution, check with your prepress service provider before setting compression and
downsampling options.
You should also consider whether users need to magnify a page. For example, if you are creating a PDF document of a
map, consider using a higher image resolution so that users can zoom in on the map.
Downsampling refers to decreasing the number of pixels in an image. To downsample color, grayscale, or monochrome
images, choose an interpolation method—average downsampling, bicubic downsampling, or subsampling—and enter
the desired resolution (in pixels per inch). Then enter a resolution in the For Images Above text box. All images with
resolution above this threshold will be downsampled.