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Chapter 4. Creating an Interactive Map > Modifying an Image in Acrobat

Modifying an Image in Acrobat

Now that the map is complete and tested, there are a few details to take care of. As Amanda works with the map, she realizes the text pop-ups would look better if there were some way to highlight the area on the map where the text consistently displays (the upper right of the map). She could reopen the document in her image-editing program, make changes, resave it as a PDF, and replace the page. Or she can save some time and work from within Acrobat to dynamically edit the document in her image-editing program and return the modified image to Acrobat—a process called round-trip editing.

Follow these steps in Acrobat to set preferences that specify an image-editing program:

1.
Choose Edit > Preferences (Acrobat > Preferences on a Mac) to open the Preferences dialog.

2.
Click TouchUp in the Categories column to display the TouchUp preferences.

3.
Click the Choose Image Editor button to open a Choose Image Editor dialog.

4.
Locate the program file you want to specify as the image editing program and click Open. The name of the program is listed on the Preferences dialog (Figure 4.23).

Figure 4.23. Specify a program you want to use for editing images from Acrobat in the Preferences dialog.


5.
Click OK to close the Preferences dialog.

Download the map2.pdf file to see how the map looks after editing it and adding a Web link. If you have Photoshop, you can work along with your present copy of the project and do the round-trip editing yourself.


For some round-trip editing magic in Acrobat, follow these steps:

1.
Click the pull-down arrow next to the visible TouchUp tool on the Advanced Editing toolbar if it is open, and choose the TouchUp Object tool from the pull-down options. Alternatively, you can choose Tools > Advanced Editing > TouchUp Object Tool.

2.
Right-click/Control-click the document page with the TouchUp text tool to display the shortcut menu, and click Edit Image. If you are editing a particular image on a page, right-click/Control-click the image; in this case, the entire page comprises the image.

3.
Depending on the content of the image you intend to edit, a TouchUp dialog like that shown in Figure 4.24 opens. Read the information—in this project the TouchUp dialog states that due to the document’s transparency it may look different after editing.

Figure 4.24. Acrobat warns you if there are features of the document that may be altered after editing.


If the transparency in the image is important, such as an image that overlays other content on the PDF file, you may want to click No and then modify the image through your image-editing program to control transparency.

4.
In this case, click Yes to dismiss the dialog and launch the chosen image editing program.

5.
The document opens with a temporary PDF filename. Make the desired changes, such as adding text, modifying image content, changing image colors, or as Amanda does, adding a yellow-to-white gradient to the area where the text images are shown on the map.

If you add layers or vector data such as text, the document must be flattened by choosing Layers > Flatten Image in Photoshop.

6.
Save and close the temporary document after making changes.

7.
View the results in Acrobat. In this project, a gradient was added to the upper right of the map to serve as a background for the text pop-ups (Figure 4.25).

Figure 4.25. You can round-trip edit images from Acrobat, changing the image to add a gradient background.


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