This was able to combine two pdfs in a folder into one pdf, but unable to combine more than this.
import arcpy, os # Set the workspace. arcpy.env.workspace = r"C:\Output" #Set file name and remove if it already exists pdfPath = r"C:\Output\Map.pdf" if os.path.exists(pdfPath): os.remove(pdfPath) # List all of the pdf files in the output folder. # pdfList is a Python List returned from the ListFiles function. pdfList = arcpy.ListFiles("*.pdf") #Create the file and append pages pdfDoc = arcpy.mp.PDFDocumentCreate(pdfPath) for f in pdfList: pdfDoc.appendPages(f) pdfDoc.saveAndClose() del pdfDoc