What is the PNAS page estimator tool used for and how can it help in estimating the number of pages required for a manuscript submission to the Proceedings of the National Academy of Sciences (PNAS)?

The PNAS page estimator tool is used to estimate the number of pages needed for a manuscript submission to the Proceedings of the National Academy of Sciences (PNAS). It helps authors plan their submissions by providing an approximate page count based on the number of figures, tables, and references included in the manuscript. This tool can assist authors in preparing their manuscripts to meet the journal's formatting requirements and ensure that their work fits within the specified page limits.