Archivum

Read the margins
of history.

A workspace for reading and annotating historical manuscripts.

Tools for
manuscript study.

PDF Reader

High-resolution manuscript rendering with single-page and facing-page views. Zoom, navigate, and set logical page offsets.

Smart Panels

Drag-resizable sidebars for your table of contents, reader, and notes. Collapse or expand on demand.

Per-Page Notes

Rich text bound to each page. Write, compile, and export everything into a single markdown document.

Vector Annotations

Freehand pen strokes and horizontal highlights. Erase entire strokes, not individual pixels.

Table of Contents

Build nested TOCs and map each entry to its target page. Reorder, group, and navigate instantly.

Own Your Data

Local-first storage with cloud sync. Full workspace backup as a single zip. PDFs and data in one file.

Mark the page.

Underline a line. Draw a note in the margin. Cross-reference another manuscript. Every stroke is a vector. Draw, move, erase.

  • Freehand pen for marginalia
  • Horizontal highlights with drag handles
  • Stroke eraser: click to remove entire strokes

Local-first.
Cloud-backed.

Your PDFs stay on your device. Notes sync when you choose. Export with one click. Raw files, structured data, or plain text.

Local-First

Your PDFs stay on your device. No server dependency. Zero-latency access, always.

Cloud Sync

Notes sync when you choose. A cloud layer that stays out of your way until you need it.

Export

Full workspace backup as a single zip. PDFs, notes, and metadata in one portable file.