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Release Notes

BETA v0.9.0 • March 10, 2026

PDF Diff changelog

First public beta release of PDF Diff. This version introduces the core local workflow for loading two drawing sets, comparing pages, reviewing detected changes, and exporting results.

Local-firstDrawing set comparison
Split / DiffReview modes
Cloud MarksBeta markup workflow
PDF + PNGExport output
EN / JALanguage support

BETA v0.9.0

First public beta release of PDF Diff. This version introduces the core local workflow for loading two drawing sets, comparing pages, reviewing detected changes, and exporting results.

Included in this beta

Core Comparison

  • Compare Before and After PDF drawing sets locally.
  • Compare selected pages or the full drawing set.
  • Review page thumbnails with similarity scoring to identify changed sheets faster.
  • Detect page-size mismatches and apply preview size matching when sheets do not align cleanly.

Included in this beta

Reviewing Changes

  • Use Split and Diff viewing modes for side-by-side review and change-focused inspection.
  • Use synced zoom and pan, fit-to-screen, and full-screen controls for closer review.
  • Switch between Before, After, and Result layers while working in Diff view.
  • Adjust compare colors with presets and custom color controls.
  • Move through changed pages faster with built-in keyboard shortcuts.

Included in this beta

Diff Markers & Cloud Marks (Beta)

  • Generate cloud marks for the current page or all selected changed pages.
  • Browse detected regions more easily from the dedicated Changes tab.
  • Merge, break apart, move, and resize cloud marks during review.
  • Undo and redo cloud mark edits while refining change areas.
  • Adjust cloud numbering and size controls for clearer review output.

Included in this beta

Export & Workflow Polish

  • Export results to PDF or PNG.
  • Export all pages, clear selections, or export changed pages only.
  • Create export-ready output with cloud mark overlays and automatic file naming.
  • Track longer jobs with progress feedback and cancellation support.
  • Review larger drawing sets more smoothly during page-to-page navigation.

Included in this beta

Settings & Utility

  • Save preferences for viewer mode, default cloud mark behavior, and language.
  • Use the app in English or Japanese.
  • Open the Help & Shortcuts panel for quicker onboarding.
  • Access the Settings and About dialog for version and product details.
  • View application logs and third-party notices from built-in utility screens.

Beta note

Beta note: Cloud Marks is still in beta and will continue to improve in future updates.