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@thestinger thestinger released this 13 Feb 09:24
· 286 commits to main since this release

Full list of changes from the previous release (version 9). Notable changes:

  • add dark mode support for the app UI (not documents)
  • generated a new icon following our upcoming revised icon style
  • update dependencies

Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. Content-Security-Policy is used to enforce that the JavaScript and styling properties within the WebView are entirely static content from the apk assets. It reuses the hardened Chromium rendering stack while only exposing a tiny subset of the attack surface compared to actual web content. The PDF rendering code itself is memory safe with dynamic code evaluation disabled, and even if an attacker did gain code execution by exploiting the underlying web rendering engine, they're within the Chromium renderer sandbox with no access to the network (unlike a browser), files, or other content.