Since its introduction in the early '90s, Adobe's PDF format has become the standard for digital documents, valued for its portability and advanced features. Initially proprietary, the PDF was standardized in 2008, leading to widespread accessibility through various software. In 2017, a feature request for the Insomnia app to support PDF viewing prompted the use of Mozilla's PDF.js, which encountered challenges including compatibility and maintenance issues. The Insomnia team later replaced PDF.js with PDFium, benefiting from its integration in Chromium, which enhanced functionality and reduced code and app size, illustrating the advantages of teamwork and re-evaluation in software development.