AllDoc

Offline document reader for Android. Open documents, keep your place, and share text, structured data or page images with other apps.

Highlights

• Reading views. Scroll documents vertically or pan spreadsheet grids in Normal; move one page at a time in Present. Markdown has one continuous formatted reading view, with a Text alternative. Extractable documents also offer a Text view.
• Your place, remembered. Position, zoom, rotation, reading view and appearance follow the document's SHA-256 hash, even when its name or source changes.
• Recents and Library. Six recent documents, a three-column cover grid, incremental content-aware indexing, type groups and fuzzy filename filtering. Open individual files or grant shared-storage access. Library keeps its own document-type filters.
• Document colors. System, Light, Dark, Paper, Original, Contrast and Invert, with separate image handling. Paper roughness is adjustable; System, Light, Dark and AMOLED app themes are independent of document colors.
• Notes and navigation. Search, PDF contents, and supported speaker notes/comments below the page in portrait or alongside it in landscape.
• Export and integration. Text, hierarchical JSON, page images and Print to PDF. Descriptor-based previews for Android apps; OACP capabilities for assistants.
• Debug examples. Debug builds include 46 small offline documents, one per supported extension. Release builds omit them.

Temporary shares can be retained as deduplicated copies in Documents/AllDoc, with an inline storage slider from Off through 4096 MB, plus Unlimited. A separate safety cap bounds the copy index. Source files remain separate from the reader's working cache. Reading state and storage.

Android 9+ · app.smallthingz.alldoc · arm64 and x86-64

Formats

Family	Reading support
PDF	Pages, extractable text, contents and annotations
Word, PowerPoint, Excel	Best-effort OOXML pages and XLSX worksheet grids; structured reading for legacy binary formats
OpenDocument, RTF, EPUB, FictionBook	Text and document structure
Pages, Numbers, Keynote	Saved embedded previews, when present
Markdown	Formatted headings, lists, emphasis, tables and code in one continuous document
HTML, XHTML	Readable document text; scripts and remote resources are ignored

Rendering fidelity varies by format. Standalone images, plain text, source code, data files, email and 3D models are outside the reader’s scope. Apple IWA content is not decoded; scanned pages have no OCR. Macros and active content do not run. Bounded or omitted content is reported. See the full format matrix for extensions and limits.

Build

Requires a Linux x86-64 host, JDK 21, Python 3, Git, patch, Rust with rustup, Android SDK Platform 37 and NDK 29.0.14206865. Set ANDROID_HOME and JAVA_HOME first.

rustup target add aarch64-linux-android x86_64-linux-android
git submodule update --init --recursive
scripts/build

Use scripts/build --abis arm64-v8a for a phone-only build or --debug for debug APKs. scripts/build --check checks prerequisites. Separate ABI APKs are written under app/build/outputs/apk/release/.

Release builds enable R8, resource shrinking, and compressed DEX/native libraries. They currently use the local Android debug key; configure a private release key before store distribution. Native build details.

scripts/check-core
./gradlew :app:testDebugUnitTest :app:assembleDebug :app:assembleDebugAndroidTest
./gradlew :app:connectedDebugAndroidTest :client-test:connectedDebugAndroidTest

Build native libraries before running Gradle packaging. scripts/check-core exercises the host JNI reader; device tests cover rendering, gestures, persistence, cancellation and cross-app descriptor ownership. Tests use synthetic fixtures.

Integration

Android apps can bind to app.smallthingz.alldoc.ipc.DocumentService through the small :api module. Pass a caller-owned file descriptor, retain a session while viewing, and request text, JSON or PNG through bounded descriptor streams. Document bytes stay out of Binder messages; parsing and rendering run on workers.

• Android API and client example
• OACP discovery and assistant capabilities
• Reader interface
• Document color handling

Sources and acknowledgements

WordCraft, DeckCraft, and GridCraft are pinned submodules. AllDoc uses their parser/rendering components with local mobile adapters; upstream updates require rebuilding and checking the format fixtures. Native source inventories, patches and dependency notices are retained under native/.

Reverb, MJ PDF and Dark Reader inform the interface and document colors. Design references. Dependency notices are available from Licenses on Home.

License

Original AllDoc contributions are Apache-2.0. Third-party and ZFM-derived code retains its own terms; the ZFM crate and repository contain conflicting license declarations. See NOTICE for scope, provenance and retained license texts.