[aquarianx]

I seem to have a working set-up for macosx.

Step 1: Rename the .orb file to .zip

Step 2: Extract files to single folder. This yields a folder with .swf files in numerical order.

Step 3: Change the extension of all the files to .swf. I used A better finder rename for this.

Step 4: Using Kurst swf renderer, batch convert all the swf files to png.
a) Open swf renderer.
b) Click "select swf" and select all the png files
c) click "select folder" and choose a folder to save the converted files
d) Change content scale to 2
e) Set background to transparent
f) Change "stop exporting" setting to "when last frame is reached" and uncheck "export swfs to sub folders"
g) Click "Start Capture". All swf files are converted into png files in one folder.

Step 5: Select all the png files and open with preview. cmd + a to select all the files in the side frame. Print into pdf as single pdf file.

A 20mb orb file becomes a 160mb pdf file, but I suppose this would depend on factors such as number of images. Text heavy files don't inflate too much in size. Hope this helps someone.