Release pdfOptimizer 4.1.1

Release date: Nov 13th, 2025

pdfOptimizer is our iText Core add-on to reduce the file size of PDFs.

This release focuses on improving the reliability of the font subsetting optimization from the previous release. Thanks to customer feedback and internal testing, we’ve addressed several important issues where font merging could break documents, particularly when merging subsetted TrueType fonts with incompatible cmap tables.

Downloads

Changelog

Installation Instructions

Examples (latest ones)