[Document Merger APIs for Python Open Source Python APIs for Merging Documents Explore open-source Python libraries to split a larger document into smaller ones, merge or join multiple documents and swap, rotate, delete pages etc. in documents. Document Merger APIs for Python Include PyMuPDF PyMuPDF is a free and open-source Python library for advanced PDF page management. pypdf Python library to split, merge, add and tranform pages of PDF documents.]