Publisher for Raster allows you to preview the output image before you generate the GeoPDF file.
To preview the output image before generating the GeoPDF file, navigate to Actions > Generate Preview or click the Preview icon in the toolbar.
The preview will appear in the Image Preview pane of the main window. Make any changes to the parameters and then preview the image again.
Note: You can stop the image generation process at any time by clicking Cancel at the bottom right corner of the main window.