TilePDF

  • Closed beta
  • Android

A PDF reader and editor with no ads and no account. Your documents never leave the phone.

Metrics

  • ~12 msmedian zoom frame
  • 4ABIs
  • 672tests

Highlights

  • PDF reader and editor with forms/XFA, signature verification, on-device OCR and incremental saves.
  • A custom PDFium build via JNI (4 ABIs) and a tile renderer written from scratch; ~12 ms median zoom frame time.
  • 481 unit and 191 instrumented tests.

Stack

  • Kotlin
  • Jetpack Compose
  • C++ / JNI
  • PDFium
  • Room
  • WorkManager