How do I merge a PDF? Publitas Support March 29, 2019 12:19 Updated It is not possible to merge two or more PDFs into one online publication within Publitas. If you would like to merge two PDF files, we recommend using Smallpdf.com. Merge your PDFs with Smallpdf, then upload the completed PDF to Publitas. Related articles Single vs. Booklet/Spread Publications PDF Specifications & Recommendations How can I upgrade or downgrade my Publitas plan? Why isn't my Publication flipping?