The Aloaha PDF Suite offers different ways to create and apply letterheads to your prints.
The easiest way to create a Letterhead Template is printing to the Aloaha PDF Printer as usual and save it as PDF. Then press “Configure Letterhead” and drag and drop the previously created PDF Letterhead into the the preview screen of the “Letterhead Manager”.
Aloaha PDF Suite Preview
Aloaha Letterhead Manager
Import existing PDF Document as Letterhead
The Aloaha Letterhead Manager can also be started with a right click on the Aloaha PDF Suite System Tray. There you choose “Configure Letterhead”.
Another way of creating your own letterhead is just doing a drag&drop of an existing PDF File to the Letterhead Manager preview. Aloaha will automatically import your PDF as a letterhead template.
The registry key HKLM\Software\Aloaha\pdf\LayeredPDFLetterhead defines if only one or several PDF Layers are used. The key HKLM\Software\Aloaha\pdf\PDFLetterHeadLayer defines the PDF Layer to be used for the Letterhead.
You can easily define a letterhead with the embedded command background. For example with using the commad background: c:\letterhead.pdf
In case you want to apply a letterhead / stationary via hotfolder please have a look here:
http://www.aloaha.com/2017/12/01/batch-assign-letterhead-to-existing-pdf-documents/