Notable changes in version 17:

• set zoom ratio to fit document to window size by default
• decrease minimum zoom ratio to 0.2 from 0.5 (can zoom out much further)
replace custom file size parsing with Android implementation
• avoid uncaught exception when parsing file sizes from certain Storage Access Framework providers
• update pdf.js to 3.8.162
• update other dependencies
• improve implementation

See https://github.com/GrapheneOS/PdfViewer/releases/tag/17 for the full release notes.

~GrapheneOS