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Exporting as PDF

You can export Canvas documents to the Portable Document File (PDF) format. Canvas has the ability to apply security settings and embed fonts, and halftone settings. A specific color mode is also available so that it may be applied to all PDF objects. Also, the whole file can be compressed by the PDF export filter.

To export to PDF:

  1. Choose File | Save As.
  2. Select PDF - Acrobat™ files as the format.
  3. Enter a name for the file and click Save.
  4. In the PDF Options dialog box, select the PDF options.

PDF Options dialog box

General options

Compress text and vectors: All vector graphics, including a stream of text data, is compressed when this option is activated.

Apply 7-bit ASCII encoding: If activated, all binary data is filtered through an ASCII filter, which converts a file so it can pass through a data channel that supports 7-bit data only (e.g., e-mail servers). ASCII encoding increases data size to an approximate ratio of 5 to 4.

Add security features: Select this check box and the Security Options dialog box opens. To adjust security settings, click the Settings button (see Security settings).

Exact character positioning: Each character of a text object is positioned individually to achieve maximal precision. This choice produces a little larger PDF file; however, if precise text layout is required, this option is correct. If this option is deselected, the PDF export filter tries to merge together as many characters as possible to form whole words and lines of text. This way, it is easier to work with text if the user decides to modify the PDF file later when imported back in Canvas.

Embed font subsets: Select this option to embed subsets of all TrueType and PostScript (Type1) fonts. Click the Settings button to view the various font embedding options (see Embedding font subsets).

Current page only: Select this option to export the current page.

Create PDF layers: Select this option to export the document layers in the PDF. If not selected, all objects export on one layer. If a layer is hidden, that layer will not export.

Export non-printable objects: Select this option to export objects that are not printable in the Document Layout palette (see Setting options in the palette).

Convert all colors to: If activated, the color of all vector, text, and image objects is converted to RGB or CMYK. If not selected, all objects retain their original color mode.

Images

Resolution: Affects bitmap rendering. Default settings are 72 or 96 dpi. The chosen resolution is applied to all images. We recommend 72 or 96 dpi for online documents. A printed document requires 150 or 300 dpi. You may choose a higher value; however, 300+ dpi produces a large file size.

Compression: Bitmaps are compressed during export. Choose lossless (ZIP) or lossy (JPEG) compression. Lossless is appropriate for technical drawings, illustrations, or cartoons, while JPEG compression is best for photographs.

JPEG quality: Only active if lossy (JPEG) compression has been selected. Four quality levels are available: Best, Fine, Good, and Draft. These options are the same as the ones for Flash Export (see Flash Options dialog box).

Transparency

Use the Render and Color mode options to decide how colors of a transparent object are rendered (see Transparency settings).

Specify halftone settings

Select halftone information to store inside the PDF. If no settings specified, custom halftone information isn’t applied to a document. The halftone setting of the output device isn’t used when printing your PDF (see Halftone settings).

Save these settings as default

If selected, the settings will be the default PDF settings.

Click the Default button to restore the default settings file.

Security settings

When exporting to PDF, you can set one password for opening the document and an additional password for permissions and restrictions for various features such as printing and copying. These passwords are independent of each other.

If you want to define a password to open the document, select the Require password to open document check box and define the password.

Anyone who needs to open the PDF must have this password.

If you want to establish permissions for various options, select the other check box and define the other password. Then select the check boxes for the options that the user is able to perform; i.e., printing, copying, extracting.

If an option is not selected, the user cannot perform this action.

Embedding font subsets

The creation of subsets means that only characters used in the document are embedded.

This setting ensures the safe electronic transfer of a document between different platforms, machines, or offices; however, embedding the fonts could dramatically increase the size of the resulting PDF document.

To view the other options, click the Settings button to open the Font embedding options dialog box.

For the last two options, click the Add fonts button if you don’t find the font in the list. In the Available fonts dialog box, select the fonts that you want to add to the list.

Transparency settings

These settings decide how colors of a transparent object are rendered.

Render mode

Specify which area of a transparent object is rendered.

Color mode

This option specifies the color space used when rendering transparent areas. This feature is not available if Convert all colors to is activated. If Convert all colors to is active, then the global color mode is used.

Halftone settings

Some output devices may override these settings with their own default settings. Contact the device’s manufacturer to learn how to disable this option for the device that you are using. Doing so will ensure that your custom PDF options are used.

Transition effects

Canvas can embed presentation slide transition effects within PDF files. Since a one-to-one conversion between Canvas transition effects and those available within Acrobat don’t always exist, the export filter maps effects that don’t correlate directly as follows:

See the Adobe® Acrobat® documentation for more information on Acrobat transition effects.

Effects that are the same or almost the same:

Canvas

Acrobat

NO DISSOLVE

Replace (i.e. 'no effect')

SLIDES

Wipe

VENETIAN BLINDS

Blinds

HORIZON

Split (horizontally)

DOORS

Split (vertically)

SHRINK BOX

Box (closing)

GROW BOX

Box (opening)

DISSOLVE

Dissolve

Similar effects:

Canvas

Acrobat

SWITCHER

Wipe

STRETCH OUT

Split (horizontally)

IRIS IN

Box (closing)

IRIS OUT

Box (opening)

CORNERS

Box (opening)

JAIL BARS

Blinds (vertical)

CHECKERS

Glitter (0 degrees)

CASCADE

Glitter (270 degrees)

CROSS CUT

Glitter (315 degrees)

Other effects:

Canvas

Acrobat

CLOCK

Dissolve

BUBBLES

Dissolve

SPEED BOX

Dissolve

STAR BURST

Dissolve

Timing

In Canvas, the duration of an effect can be set on a scale that goes from ‘min’ to ‘max’. That settings will be used in a PDF as a time that goes from 0.5 seconds up to 4.0 seconds.

Since there is no option for setting the length of time an individual slide will stay visible during a slide show, a default time of 15 seconds will be used; i.e., if the user doesn’t go to the next slide, the next slide will come up automatically after 15 seconds.

Hypertext links and URLs

The PDF Export filter supports all links that have been set through the Link Manager (see Using the Link Manager palette). Links to individual pages of a multi-page document will result in the creation of hypertext links within the PDF. Links to external HTML or PDF files are also supported.

It should be noted that PDF supports rectangular (orthogonal) hot-spots only; i.e., if a URL is assigned to a rotated text object, the bounding box of the text will be defined as the hot-spot area. This should not be a problem if there is just one such link on a page. However, be aware that if more than one rotated text (or other non- rectangular objects) with a URL are used on a page, their bounding boxes may intersect. This may cause links that are located beneath another’s bounding area to not work as expected.

Default bookmarks of a multi-page document

When exported, a document containing more than one page will link to each individual page of the document. Names of each page are used as titles for the bookmarks. Because they are exported as Unicode text each title may contain any letter that is supported by your current locale.

Using Multiple Master PostScript fonts

The PDF Export filter can’t embed Multiple Master fonts. If a Multiple Master font is used in a document, the PDF filter exports all standard properties of the font; however, it will not embed the actual data of the font, regardless of the current setting in the PDF Export dialog box.