Click the Assemble
Image(s) into PDF button 
.
In the dialog that displays, select the images
that you want assembled into the PDF, then click OK.
The assembled images are displayed in the PDF Viewer.
To assemble one or more of the images of the current document into a single PDF:
Click the Assemble
Image(s) into PDF button .
In the dialog that displays, select the images
that you want assembled into the PDF, then click OK.
The assembled images are displayed in the PDF Viewer.