Readux1, a reading and annotation platform for Emory University’s digitized books, supports exporting an annotated edition as both TEI-encoded data and as a fully featured standalone website. One of the primary objectives of the platform is to support the creation of digital critical editions of texts in which the visual image of the page is essential to scholarly analysis. Using the TEI standards for encoding digital facsimiles, Readux provides an environment in which scholars can add multimedia annotations to selections of text or areas of a page. This environment requires transformation of multiple OCR metadata formats into TEI surfaces and zones as well as the conversion of user annotations made in Markdown to notes anchored to zones in the facsimile. Scholars can choose to export their annotated editions as TEI XML or as a bundled website site built with Jekyll that includes the TEI datafile. Readux also supports publishing directly to GitHub pages allowing users to easily publish an annotated edition to a freely hosted site. Adherence to TEI standards is crucial to Readux’s mission to support digital scholarship in a durable archival format that can be adapted to new platforms.