Node Connectivity
There are 1179 nodes that can be used as predessesor
for a node with an input port of type 
org.knime.core.node.port.AbstractSimplePortObject.
Process PDF With OCR
Process PDF files with OCR using Tesseract
Flatten
Flatten PDF form fields or full page
Extract Images
Extract images from a PDF file
Extract Image Scans
Extract image scans from an input file
Decompress PDF
Decompress PDF streams
Optimize PDF
Optimize PDF file
Auto Split PDF
Auto split PDF pages into separate documents
Extract Header 1
Extract header from PDF file
Add Stamp
Add stamp to a PDF file
Add Page Numbers
Add page numbers to a PDF document