Free Desktop Publishing
Without Ads or Subscriptions.

Open Publisher is a full-featured WYSIWYG desktop publishing suite built as a free, open-source alternative to Microsoft Publisher. Craft newsletters, brochures, flyers, event posters, menus, and books on a true physical-measurement canvas (CM, MM, Inches) with absolute coordinate control, linked multi-column text, 200+ vector shapes, 60+ 3D WordArt styles, 3,400+ transparent clipart graphics, and pre-flight proofing.

True WYSIWYG Canvas

Absolute coordinate positioning on fixed dimensions (CM, MM, Inches). Screen designs match printed output exactly with linked multi-column text flow, tab stops with leaders, and drop caps.

200+ Shapes & 3D Engine

Over 200 scalable SVG shapes with solid, gradient, and pattern fills, real-time 3D rotation, and 60+ image-based WordArt styles (neon glow, holographic, metallic, and 3D extrusion).

3,403 Clipart & Page Parts

Built-in transparent clipart library, freehand drawing tools (brush, pencil, spray), non-destructive crop-to-shape frames, and drop-in Page Parts (sidebars, pull quotes, coupons, QR codes).

Editorial & Pre-Flight

Built-in Flesch-Kincaid readability scoring, emotional tone detection, automated Design Checker for overflow and low-res warnings, WCAG accessibility audit, and Pack & Go handoff.

Official Release 64-bit amd64

Open Publisher V5 for Windows

Complete standalone desktop publishing suite for Windows 10 & 11 (64-bit) • Native .opub association & 300 DPI print fidelity

Full Publishing Suite: WYSIWYG canvas, multi-column text, tab leaders & 100 table styles

Creative Elements: 3,403 transparent clipart, 200+ vector shapes, 3D rotation & 60+ WordArt

Proofing & 300 DPI: Design Checker, Flesch-Kincaid suite, Pack & Go ZIP & PDF export

100% Free & Private: GNU GPL V2 licensed, zero telemetry, zero tracking, all data local

Open Publisher V5 (Desktop_Window.opub)

Hardware Accelerated Full Workspace

🖥️

Open Publisher V5 Desktop Workspace

Familiar, distraction-free publishing environment with responsive vector canvas, ribbon toolbars, and multi-monitor support.

True Physical Units: Centimeters (default), Millimeters, Inches, and Pixels.

Zero Spillage: Mathematical page margin calculation guarantees single-page prints never spill onto 3 sheets.

Zero Ads or Tracking: 100% free, private, and self-contained desktop software.

Engineering Precision

Engineered with exacting precision for print fidelity.

Open Publisher V5 introduces rigorous architectural systems ensuring high-resolution output and zero data loss.

Physical Measurement Subsystem

Real Centimeters, Millimeters, and Inches on Canvas

Most graphic editors confuse screen pixels with physical paper. Open Publisher V5 introduces a mathematically authoritative physical unit engine calibrated for real-world printing.

Centimeters (cm) Default: Canvas rulers, dimension dialogs, and coordinates speak native centimeters, millimeters, or inches.
300 DPI Print Resolution: Strict calculation prevents accidental bleed into 3 separate printer sheets.
Sub-Pixel Blank Page Elimination: Precision rounding removes unintentional empty trailing pages on print spools.
DPI-Invariant Margins: Margin presets dynamically re-scale whether editing at 96 DPI, 150 DPI, or 300 DPI.

Page Size & Unit Precision Dialog

Centralized UnitConversionService ensuring absolute physical dimensions across all zoom levels.

Bulletproof Integrity

4-Step Atomic Saves & 50-Version Shadow History

Never lose a paragraph of work to sudden crashes, OS restarts, or power cuts. Open Publisher replaces direct file writes with a hardened atomic save pipeline.

4-Step Atomic Pipeline: Writes to temporary storage, verifies byte integrity, atomically replaces destination, and cleans up temp caches.
15-Minute Shadow Snapshots: Background snapshots silently archive up to 50 versions in user AppData without freezing the UI.
Interactive Backup Manager: Recover unsaved files, browse historical versions, or restore projects with a dedicated search modal.
External File Watcher: Seamlessly detects when a file is modified externally and prompts to reload safely.

AppData Backup Manager • Shadow Snapshots

Dedicated system backup directory with non-blocking serialized asynchronous IPC streams.

Workflow Ergonomics

Unified Cross-Platform Clipboard & 25-Item Scrapbook

Cross-platform desktop publishing clipboard synchronization has been completely resolved. Enjoy 100% parity between Ribbon toolbar buttons and keyboard shortcuts.

Zero Double-Pasting: Eliminates duplicate ghost elements when switching between canvas shapes and OS images.
100% Ribbon Bar Parity: Toolbar Copy, Cut, and Paste buttons exhibit identical behavior to Ctrl/Cmd + C/X/V.
Intelligent Paste Separation: Pasting web content extracts images into standalone movable canvas objects separate from text.
25-Item Clipboard Scrapbook: Slide-out drawer caches the last 25 system-copied images for rapid drag-and-drop placement.

Ribbon Scrapbook Drawer • Image Extraction

Authoritative client-side clipboard subsystem with bidirectional IPC token protection.

Official Documentation Portal kb.openpublisher.app

Open Publisher Knowledge Base

Looking for user guides, video walkthroughs, and tutorials? The official Open Publisher Knowledge Base is the dedicated online documentation library for all publishing workflows.

Visit kb.openpublisher.app

🚀

Getting Started

Document creation wizard, workspace orientation, ribbon bars, and multi-monitor setup.

Browse topic →

📐

Layout & Dimensions

Setting page sizes (A4, Letter, Custom), physical margin rules, CM/MM rulers, and 300 DPI exports.

Browse topic →

🎨

Typography & WordArt

Rich text formatting, 200 WordArt headline styles, custom fonts discovery, and text frame linking.

Browse topic →

🖨️

Print & Export

Zero-spillage single page printing, CMYK PDF rendering, and high-DPI raster graphic export.

Browse topic →

Client Engine Architecture

72 Client Features

Complete directory of all 72 technical client enhancements and performance upgrades introduced in V5.

Auto-Scrolling Stream

🛡️ Data Safety & Recovery #01

Non-Blocking Saves & Async IPC Update

Improved Dialog Handling: By removing the save data from the dialog pipeline, standard alerts and prompts within the app will also perform more cleanly and reliably.

🛡️ Data Safety & Recovery #02

Atomic Save Feature

Temporary Write: The new document data is written to a temporary file (`[filename].opub.tmp`). The original file remains completely untouched during this phase.
Verification: The system checks the byte-length of the `.tmp` file to verify that the write was successful and the file is not empty (e.g., catching disk-full errors mid-write).
Backup Rotation: If the original file already exists, it is copied to a backup file (`[filename].opub.bak`). This ensures you always have the last known-good version of your document.

🛡️ Data Safety & Recovery #03

Dedicated Backup and Recovery Directory Migration

Dedicated System Backup Directory: Implemented getBackupDirectory() which routes backup rotation to AppData\Local\OpenPublisher\User Data\Default\Backups (with a safe fallback to %TEMP%\OpenPublisher-Backups).
Working Directory Clutter Elimination: Updated atomicSave() to write .bak copies directly into the system backup folder instead of creating .bak files alongside the original project file.
Legacy Backup Cleanup: Added automated cleanup in atomicSave() that automatically unlinks and removes any legacy .bak files remaining in the document working directory whenever the document is saved.

🛡️ Data Safety & Recovery #04

Interactive Backup Manager & System Tray Recovery Integration

Metadata Inspection & Listing: Each backup entry displays its publication name, raw filename, last modified date and time, file size, and parsed page count with selected-item preview highlights.
Unsaved Changes Guard: Added safety confirmation checks prior to loading a backup if the user currently has unsaved modifications in their working document.
Multi-Entry Access:

✏️ Canvas, Typography & Editing #05

Canvas Element Copy, Cut & Paste Subsystem Update

Precise UI Button Target Matching:
Replaced container ancestor walking with targeted button resolution using closest('button, [role="button"], [role="menuitem"], .tool-btn, .btn, .pub-context-item, .context-item, .context-menu-item, .dropdown-item, ...').
Eliminates false positives where clicking other buttons (e.g. Copy) inside a ribbon group or toolbar was mistakenly intercepted by the container's concatenated text.

🛡️ Data Safety & Recovery #06

Chromium Idle Auto-Save (chrome.idle)

Idle Detection Initialization:
Set chrome.idle.setDetectionInterval(600) to configure the system idle threshold to 10 minutes (600 seconds).
State Change Listener:

✏️ Canvas, Typography & Editing #07

Native Clipboard & Paste Button Integration Update

Direct IPC listener (`OP_GET_CLEAN_CLIPBOARD`) for the web app to invoke native clipboard pastes via `webview.paste()`.
IPC Listener: Modified `wrapper.html` to intercept `OP_GET_CLEAN_CLIPBOARD` in the `consolemessage` event listener.
Context Menu Support: Extended control detection to include `.pub-context-menu`, `.pub-context-item`, `#minimap-context-menu`, and general dropdown/context items. When a context menu Paste item is clicked:

✏️ Canvas, Typography & Editing #08

OpenPublisher V5 Unified Client-Side Clipboard Hijack & Synchronization

Double-pasting bug: Copying an element in OpenPublisher followed by copying an
Ribbon paste lock: Clicking the Ribbon "Paste" button only pasted what was last
Internal element copy failure: In sandboxed webviews, navigator.clipboard.writeText

✏️ Canvas, Typography & Editing #09

Clipboard Scrapbook Subsystem & Ribbon Drawer Integration Update

Automated background OS clipboard image interception that polls for copied images (from browsers, screenshot tools, image editors, etc.) every 2 seconds for both PNG and JPEG formats.
Local temporary disk cache with a FIFO limit of 25 items, persisting image data and metadata across application launches.
Dual native ribbon buttons injected into Home -> Clipboard and Insert -> Illustrations, featuring teal icons and live badge counters.

🛠️ Developer Mode & Diagnostics #10

Microsoft Agent (Clippy) Assistant Integration Update (Remote MKLab Architecture)

Legal & Hosting Architecture Disclosure:
ZERO SERVER HOSTING ON OPENPUBLISHER.APP: The openpublisher.app website and hosting infrastructure do not host, store, or distribute any Clippy or Microsoft Agent proprietary content.
ON-DEMAND LAZY LOADING: No assets, stylesheets, or scripts are downloaded until the user explicitly clicks the "Clippy" button.

⚙️ Runtime, Shell & OS #11

Developer HUD "Close to System Tray" & Single Instance Restoration

HUD Interface & Switch Styling:
Added a dedicated "Preferences" section to the Developer HUD with a toggle switch labeled "Close to System Tray".
Styled with custom .dev-switch and .dev-slider controls matching the dark debug HUD theme with teal active states.

⚙️ Runtime, Shell & OS #12

Expanded Comprehensive Desktop Crash Logs

HUD Metric Extraction:
Dynamically rips the exact Webview RAM, Webview FPS, and DOM Nodes directly from the DOM UI elements (#dev-stat-ram, etc.) right before the renderer is terminated.
Node process Diagnostics:

⚙️ Runtime, Shell & OS #13

OpenPublisher V5 Cross-Platform Architecture & Readiness Audit

Dynamic Menu Accelerators (macOS vs Windows/Linux/FreeBSD):
Previously, all application menubar accelerator shortcuts in setupApplicationMenuBar()
On macOS, this prevented standard Apple shortcuts and required pressing the physical Control

🖨️ Export, Spooling & UI #14

Custom Teal Green on Dark Scrollbars (Export Queue & Doc Preview)

Root Cause Identification:
Presentation Preview (doc_preview.html) loaded OpenPublisher's external style.css,
Export & Print Queue Monitor (export_queue.html) did not load style.css, resulting

🛡️ Data Safety & Recovery #15

Developer HUD IPC Traffic Sniffer & Uniform Badge Sizing

Uniform Badge Dimensions:
Added `align-items: flex-start;` to `.dev-log-entry` in wrapper.html CSS.
Defined `.dev-log-badge` with fixed 14px height, `min-width: 24px`, and

🛠️ Developer Mode & Diagnostics #16

Memory Footprint Bar Chart & Live Rate Monitor (Developer HUD)

Inspector Sync: Hovering over any individual bar instantly logs that bar's exact sample number, time offset, and megabyte reading directly into the text field, reverting seamlessly to the live rate on mouse leave.
Subpixel & Flicker Fix: Eliminated dirty-rect rasterization artifacts and stray flickering pixels on the leftmost bar by:
Promoting the chart container and bars to dedicated GPU composited layers (transform: translateZ(0) and contain: paint).

🛠️ Developer Mode & Diagnostics #17

Developer HUD Tearaway Pop-Out Window (Standalone Window Architecture)

Dedicated Native Window Architecture (hud.html):
Eliminated cross-document appendChild DOM transfer, which previously caused
Built a dedicated standalone window (hud.html) with matching brand styling,

🛠️ Developer Mode & Diagnostics #18

Developer Mode & UI Live Reload Update

**Activation & Universal Hotkey (`Ctrl+Shift+D`)**
Implemented hotkey detection across all application contexts:
Directly in `wrapper.html` window and document scopes.

🛠️ Developer Mode & Diagnostics #19

OpenPublisher V5 Comprehensive Workspace Directory Tidy-Up Patch

Dedicated Subwindow Directory ('windows/'):
Relocated 7 companion subwindows and their auxiliary styles from the root
windows/hud.html (OpenPublisher Developer HUD Overlay)

🛡️ Data Safety & Recovery #20

Dynamic Titlebar Dirty State Indication

Real-Time Dirty State Broadcast (wrapper.html):
Injected a lightweight polling loop into the webview's main world that continually evaluates the document state against _lastSavedData.
When the state changes, it broadcasts a new OP_DIRTY_STATE_CHANGE IPC message up to the wrapper.

✏️ Canvas, Typography & Editing #21

Prevent Accidental Wrapper Selection & Dragging

Global CSS Rules:
Added universal rules user-select: none, -webkit-user-select: none, and -webkit-user-drag: none across html, ody, and all wrapper chrome DOM elements (*, *::before, *::after).
Completely eliminates blue highlight boxes and ghost dragging when clicking, clicking-and-dragging, or double-clicking anywhere on wrapper chrome (e.g. Recent Documents menu items, paths, headers, and buttons).

🖨️ Export, Spooling & UI #22

Document Presentation Preview (Standalone Tearaway Subsystem)

Standalone Native Window (doc_preview.html):
Frameless, translucent dark-glass aesthetic with native OS window dragging
Independent window sizing (840x640 default) that can be moved across monitors

✏️ Canvas, Typography & Editing #23

Update: HTML5 Drag-and-Drop Overlay

- A new native HTML5 drag-and-drop listener to the body of wrapper.html.
- Implemented dragenter, dragleave, dragover, and drop events.

⚙️ Runtime, Shell & OS #24

OpenPublisher V5 Dynamic Operating System Edition Detection

Dynamic Operating System Detection Engine:
detectOperatingSystemInfo(overridePlatform):
Inspects process.platform ('win32', 'darwin', 'linux', 'freebsd')

🖨️ Export, Spooling & UI #25

Dynamic Theme Synchronization & Cross-Session Persistence

Webview Partition Ephemerality: The webview element used partition="trusted", which Chromium/NW.js treats as an ephemeral in-memory partition. All guest storage (including localStorage.getItem('opub_ui_theme')) was discarded upon application exit.
Wrapper Storage Gap: The OP_THEME_UPDATE IPC listener updated in-memory CSS variables but did not write to the client's localStorage.
Startup Theme Reset: On application startup, :root CSS variables defaulted to hardcoded #146F6E, with no restoration routine executing before window render.

🖨️ Export, Spooling & UI #26

Exit Modal UI Modernization

Layout & Proportions (wrapper.html):
Reduced the modal width slightly from 400px to 380px.
Reduced the overall corner radius from a bulky 12px to a standard native 6px.

🖨️ Export, Spooling & UI #27

Export & Print Queue Monitor (Queue Management & Multi-Page Print)

Standalone Tearaway Architecture (export_queue.html):
Frameless, translucent dark-glass aesthetic with native OS window dragging
Sized at 720x520 default with multi-monitor positioning support.

🖨️ Export, Spooling & UI #28

Export Priority Elevation

Process Priority Management (`wrapper.html`):
Utilizes the Node `os` module inside the IPC message handlers.
Intercepts the `OP_EXPORT_START` message to call `os.setPriority(os.constants.priority.PRIORITY_ABOVE_NORMAL)`, instructing the OS kernel to prioritize the application over standard background processes.

🖨️ Export, Spooling & UI #29

Native Export Progress Bar

IPC Event Interception: Added a new IPC listener for OP_EXPORT_PROGRESS in wrapper.html.

🛡️ Data Safety & Recovery #30

External File Modification Watcher Update

**Watcher Management (`setActiveFilePath`)**
Introduced `setActiveFilePath(filePath)` in `wrapper.html` to manage the active file.
Automatically cleans up any previously running `fs.watch` processes before assigning a new one to prevent memory leaks and ghost events.

⚙️ Runtime, Shell & OS #31

Native Fullscreen Toggle (F11)

Keydown Interception & Webview IPC:
Attached a global keydown listener to intercept the F11 key in wrapper.html to invoke
Injected an F11 listener into the itself, bridged via the OP_TOGGLE_FULLSCREEN IPC message. This absolutely prevents F11 from breaking if the user clicks inside the publication workspace (focus loss).

🖨️ Export, Spooling & UI #32

OpenPublisher V5 First Run Wizard & Onboarding Subsystem

High-Contrast Glassmorphic Modal Architecture:
Deep Frosted Glass Card: Integrated #firstrun-wizard-container with a centered
Vector Printer Emblem: Features the vector SVG OpenPublisher printer logo

🛠️ Developer Mode & Diagnostics #33

Dashboard Default Page Initialization Fix

Fixed an issue where closing the web app's dashboard without explicitly selecting a page size would cause the default page to render broken and missing elements in the native wrapper.
- Protected State Serialization (wrapper.html): The wrapper's injected dirty-checking logic occasionally calls serializeCurrentPage() to establish document baselines. When called unconditionally on st

⚙️ Runtime, Shell & OS #34

OpenPublisher V5 Native FreeBSD Port & Standalone Package Pipeline

NATIVE .OPUB FILE ASSOCIATION & DOCUMENT HANDLING:
Full OS-Level Double-Click Launching:
Shared-MIME Specification:

⚙️ Runtime, Shell & OS #35

Global OS Keyboard Shortcut & Window Restoration

**Instant Foreground Window Restoration**
When triggered, the shortcut executes `win.show()`, `win.restore()`, and `win.focus()`.
Bypasses OS focus-stealing prevention to bring OpenPublisher cleanly to the foreground even when buried beneath other full-screen or focused applications.

🛠️ Developer Mode & Diagnostics #36

Modal & HUD UI Overhaul

Updated the wrapper CSS (`#dev-mode-overlay` and `#dev-mode-header`) to strictly match the design language of the OpenPublisher web app's `InApp` dialogs (e.g. the "About" window).
Replaced the basic monospace text in the HUD header with the native system sans-serif font stack.
Decreased the vertical header padding globally across client modals to perfectly match the tight `46px` toolbar height profile of the web app.

🛡️ Data Safety & Recovery #37

Non-Stacking In-App Idle Save Notice

Single In-App Modal Dialog (wrapper.html):
Added #custom-idle-save-overlay and draggable #custom-idle-save-modal styled consistently with Open Publisher dialogs.
Draggable header (#custom-idle-save-header) titled "Unsaved Work" with close button ('X').

✏️ Canvas, Typography & Editing #38

Animated Image Drop Effect (Ripple, Sparkle & Badge)

Teal-Green Particle Sparks: The radial 360 sparkle burst particles now use teal-green with soft glow shadows (rgba(20, 111, 110, 0.85)), providing strong contrast over white documents.
Bi-Directional Coordinate Tracking: Both direct webview canvas drops and wrapper chrome drops transmit the cursor's (x, y) position to ensure the animation centers precisely where the user released the mouse.
Webview Status Bar Toast: Dynamically updates the document status bar (#status-msg) to "Imported: " for two seconds upon arrival.

✏️ Canvas, Typography & Editing #39

Restored Smooth Image Interpolation

CSS Injection Adjustment (wrapper.html):
Removed the `image-rendering: -webkit-optimize-contrast !important` and `crisp-edges` flags that were previously injected alongside the subpixel font rendering update.
Chromium now defaults back to `auto` (bilinear/bicubic interpolation), which restores smooth anti-aliased scaling for images and icons, while leaving the high-quality subpixel text rendering completely intact.

✏️ Canvas, Typography & Editing #40

Drag-and-Drop Image Asset Import (OP_IMPORT_ASSET)

Comprehensive Image Format Support: Supports all web-compatible formats including .png, .jpg, .jpeg, .jfif, .pjpeg, .pjp, .gif, .webp, .svg, .bmp, .ico, .cur, .avif, and .tif / .tiff.
Guest Drop Listener Guard: Updated the webview guest drop listener to also check both filename and file path, dispatching OP_IMPORT_ASSET for images and preventing accidental OP_NEW_DOC triggers.
Developer HUD IPC Event Logger: Enhanced logIpcEvent to format OP_IMPORT_ASSET entries using getFileName(), displaying the clean image filename on a new line in the HUD logger.

✏️ Canvas, Typography & Editing #41

OpenPublisher V5 Linux Emoji Font Support & First-Run Asset Restore

Bundled Font - fonts/NotoColorEmoji.ttf:
@font-face Declaration - fonts/fonts.css:
Miscellaneous Symbols (U+2600 - U+26FF)

⚙️ Runtime, Shell & OS #42

Application Memory Limits Uncapped

Chromium Args (`package.json`):
Added `--js-flags="--max-old-space-size=8192"` to increase the V8 JavaScript engine's memory limit to 8GB.
Added `--force-gpu-mem-available-mb=4096` to allocate up to 4GB of VRAM to the GPU renderer, ensuring massive headroom for canvas drawing and scaling operations.

⚙️ Runtime, Shell & OS #43

OpenPublisher V5 Multi-Resolution ICO Generation

OpenPublisherv5Icon.png (Source: 1673x1673 RGBA)
opubDocument.png (Source: 256x256 RGBA)
Publication-icon-32x42.png (Source: 38x42 RGBA)

⚙️ Runtime, Shell & OS #44

Multi-Window Lifecycle & Cascading Application Exit Teardown

Root Cause Identification:
Topbar buttons had duplicate triggers (inline onclick and external event listeners)
Closing was previously delegated back to mainWindow.dockDocPreview, which failed

⚙️ Runtime, Shell & OS #45

MyDockFinder Native Menubar, Drag Zone & OpenPublisher App Identity

wrapper.html (Menu Bridge, Ribbon Triggers, Drag Zones, Title)
op_native_menu.exe / op_native_menu.cs (Win32 Menu Bridge & Window Matching)
op_menu_hook.dll (Pure Native 64-bit Hook DLL for MyDockFinder Dispatch)

🛠️ Developer Mode & Diagnostics #46

Developer HUD "Open AppData" Quick Action

Developer HUD HTML (wrapper.html): Added a new
Open AppData
button inside the .dev-toolbar container.
Developer HUD Logic (wrapper.html): Added an event listener that executes nw.Shell.showItemInFolder(nw.App.dataPath) when the button is clicked, instantly opening the OS native file explorer.

🛠️ Developer Mode & Diagnostics #47

Show in File Explorer Button (nw.Shell.showItemInFolder)

Placed a stylish folder icon button (#open-folder-btn) in #controls-wrapper, sitting adjacent to the Recent Files and Pin Window buttons.
Styled with the same translucent glass aesthetic (
Dynamic State & Tooltip:

✏️ Canvas, Typography & Editing #48

Paste Image Separation Update

Added a `capture` phase `paste` event listener in `mainWorldInjectionCode` to intercept all paste events before the web application processes them.
Analyzes `e.clipboardData.getData('text/html')` using `DOMParser`.
If `` tags are found:

⚙️ Runtime, Shell & OS #49

Always-on-Top Window Pinning Feature

**Native Pin Control in Titlebar Controls**
Positioned cleanly within `#controls-wrapper` immediately to the right of Recent Files and adjacent to the window controls.
Explicitly configured with `-webkit-app-region: no-drag;` to ensure clicks and hover states are not intercepted by the window drag regions.

⚙️ Runtime, Shell & OS #50

Chromium Power Management (chrome.power Keep-Awake)

Power Management Helpers:
Export & Save Lifecycle Hooking:
Direct Save (OP_SAVE_DATA with ctiveFilePath): Triggers

🛡️ Data Safety & Recovery #51

Built-in Previous Versions System & Background Snapshot Engine

Completely Standalone GUI Modal (wrapper.html):
Implemented #custom-prev-versions-overlay and draggable #custom-prev-versions-modal styled after native OpenPublisher dialogs.
Separate from the Backup Manager: Backup Manager displays all backups newest-first, while Previous Versions specifically focuses on the active document currently being edited.

✏️ Canvas, Typography & Editing #52

Smooth Document Content Pour Animation (.opub / .json) & Zero-Flicker Fix

Eliminated Initial Render Flash (FOUC Fix):
Hooked window.handlePublisherFileLoad and the native drag-and-drop listener to synchronously tag #paper with .paper-pouring before the file is read or parsed.
Newly rendered child elements are pre-hidden at opacity: 0 !important; transform: translateY(-22px) !important; filter: blur(2.5px) !important; from the very first paint frame.

🛡️ Data Safety & Recovery #53

Reboot in Safe Mode (Developer HUD)

Developer HUD Button: Added a 'Reboot Safe Mode' button to the Quick Actions section in the Dev HUD (accessed via Ctrl+Shift+D).
Reboot Logic: Wired the button to use Node.js "child_process.spawn". It launches a fresh, detached instance of the application with the "--safe-mode" flag and cleanly exits the current instance via "nw.App.quit()".
Made the "[SAFE MODE]" badge clickable. When clicked, it displays a native modal explaining Safe Mode and provides a "Reboot Normally" button to easily exit the restricted state without command-line knowledge.

⚙️ Runtime, Shell & OS #54

Recent Files Feature

A bold teal header labelled **Recent Documents** in a subtly deeper teal (`#00635e`) that gives depth against the application title bar
A clean white list of files displaying the `Publication-icon-32x42.png` document icon on the left, with the filename prominently in bold and the full file path below it
A matching deeper teal footer with a **Clear History** button to wipe the list

⚙️ Runtime, Shell & OS #55

OpenPublisher - Renderer Crash Handling & Auto-Restart Recovery

Crash Event Detection & Diagnostic Logging (wrapper.html):
Actively monitors the webview lifecycle through `crashed`, `plugin-crashed`, and `killed` events.
Generates an instant diagnostic crash report on the user's Desktop (`OpenPublisher-Crash-Log.txt`) detailing timestamp, uptime, active file, HUD metrics, process memory (RSS/heap), and system environment specs.

🛡️ Data Safety & Recovery #56

Safe Mode & Cache Reset Flag

Added argument parsing logic to the \
The application now correctly listens for \--safe-mode\ or \--reset\ launch flags.
If either flag is detected during launch, the app natively clears its internal Chromium cache via \

⚙️ Runtime, Shell & OS #57

Save Notification Update

**IPC Event Interception**
Hooked into the existing `OP_SAVE_DATA` event handler within the `wrapper.html` IPC message listener.
Tied the notification to fire immediately after the asynchronous `atomicSave()` function successfully completes its write operations.

🛡️ Data Safety & Recovery #58

Window Shadow, Rounded Corners & Omnidirectional Resizing

Missing Shadows & Sharp Edges: Frameless transparent windows in NW.js strip away default OS window decorations, resulting in flat, squared corners with no drop shadow.
Resize Hitbox Offset: Adding margin for a CSS drop shadow pushes native OS resize borders away from the visible application frame.
Resize Flicker & Lag: Continuously resizing Chromium transparent windows causes DirectX swapchain reallocations, leading to visual tearing, stutter, and window bounce.

✏️ Canvas, Typography & Editing #59

OPENPUBLISHER UPDATE: FULL CANVAS PASTEBOARD & SHIFT + SCROLL HORIZONTAL SCROLLING

When on the default 60% zoom, the page fits within the viewport width on wide
At 150% zoom, horizontal scroll previously stopped right at the page margin
Full Canvas Pasteboard Margins (60% Default & All Zoom Levels):

⚙️ Runtime, Shell & OS #60

Single Instance Update

**Manifest Configuration (`package.json`)**
Added `"single-instance": true` to explicitly instruct NW.js to route new launches to the existing instance and automatically quit the duplicate process.
**Window Focus (`wrapper.html`)**

🖨️ Export, Spooling & UI #61

Smart Exit Modal (Dirty State Checking)

Dirty State Baseline Tracking:
Injected logic into the webview's mainWorldInjectionCode to snapshot and track the document's serialized state (_lastSavedData).
The baseline updates automatically on launch, when saving, and when opening new/existing files.

✏️ Canvas, Typography & Editing #62

Native Spellcheck & Misspelling Highlight Support

Chromium Engine Flags (package.json): Added --enable-spell-checking and --enable-features=WinUseBrowserSpellChecker to chromium-args to activate Chromium's spellcheck engine and connect to the Windows OS native spellcheck platform.
Preferences Configuration: Configured spellcheck.dictionaries in the user profile to activate both British English (en-GB) and American English (en-US).

🖨️ Export, Spooling & UI #63

OpenPublisher V5 Adaptive Startup Screen Modernization

Adaptive Dual-Theme System:
Default / Light Theme: Features a rich multi-stop radial gradient
Dark Mode Theme: Automatically activates when the user has dark mode saved.

✏️ Canvas, Typography & Editing #64

Subpixel Font Rendering (Safari Style)

CSS Injection (wrapper.html): Injected global CSS into the applying:
-webkit-font-smoothing: subpixel-antialiased !important; and text-rendering: optimizeLegibility !important; for maximum font clarity.
shape-rendering: geometricPrecision !important; to ensure SVG vectors calculate exact sub-pixel geometry rather than using blurry fast-paths.

✏️ Canvas, Typography & Editing #65

Windows System Fonts & Google Fonts Integration Update

Google "G" logo icon for Google Web Fonts.
Desktop Monitor / Computer icon for local Windows System Fonts.
Windows Registry Font Discovery:

⚙️ Runtime, Shell & OS #66

System Tray Integration Update

**Native Tray Icon & Window Restoration**
Initialized `nw.Tray` using the `openoublisherv5st-icon.png` asset.
Left-clicking the tray icon natively restores, shows, and focuses the OpenPublisher window.

🖨️ Export, Spooling & UI #67

Taskbar Flashing Attention (requestAttention)

Taskbar Flash on Export / Save Complete:
In OP_EXPORT_COMPLETE and OP_SAVE_DATA completion blocks, added
On Windows, this causes the taskbar button for Open Publisher to flash/glow, notifying the user that their export or save has successfully finished even if the application is running in the background or minimized.

🖨️ Export, Spooling & UI #68

OS Taskbar Progress Integration

**Native OS Progress API**
Utilized `nw.Window.get().setProgressBar(2)` to trigger an indeterminate (marquee) progress state on the native OS taskbar.
Tied directly into the `startDesktopSaveAnimation` bridge so that both the in-app UI and the OS taskbar sync perfectly when an atomic save or "Save As" operation begins.

⚙️ Runtime, Shell & OS #69

Topbar Client Controls & Solid Icon Integration

Unboxed Toolbar Button Styling:
Removed bulky container boxes, backgrounds, and borders from #backup-mgr-btn,
Applied transparent backgrounds with subtle hover feedback

🖨️ Export, Spooling & UI #70

Unified Application Splash Screen & Real-Time Boot Sync Update (Flow Redesign Edition)

Flow UI Redesign & Modern Aesthetics:
Faceted Geometric Backdrop: Built with an inline scalable vector structure featuring translucent diagonal glass shards, sharp ambient highlight lines, and a fine halftone dot matrix grid overlay (splash-dots).
Horizontal Brand Lockup: Pure white OpenPublisher vector printer/document icon horizontally paired with bold 42px typography, a frosted "V5" pill badge, and the subtitle centered below.

⚙️ Runtime, Shell & OS #71

Windows Window Controls Contrast & Auto-Healing Color Fix

When theme updates were evaluated with mode: 'light' (such as standard non-dark
The .win-btn svg elements rely on stroke: var(--accent-color), causing the
This dark accent value was persisted into localStorage key 'op_saved_theme',

⚙️ Runtime, Shell & OS #72

Window State & Position Persistence

State Capture (saveWindowBounds):
Encapsulated coordinate and dimension tracking (x, y, width, height) into a dedicated helper function.
Added detection for maximized state (document.body.classList.contains('maximized')).

Operating System Excellence

Natively built for your environment.

No generic web wrapper compromises. Tailored for Windows, macOS, Linux, and FreeBSD.

Microsoft Windows

Windows 10 & Windows 11 (64-bit)

Windows Desktop & Start Menu Integration

Deep desktop integration with Windows Font Registry discovery, native Start Menu shortcuts, and DWM rounded framing.

Native .opub double-click file associations in Explorer
Always-on-top pushpin window pinning for reference multitasking
Compatible with MyDockFinder macOS-style desktop menu bar
Taskbar indeterminate save progress and completion flash

V5 Installer (.exe)

Portable (.exe)

Apple macOS

macOS 10.15 Catalina & Compatible

Engineered for backward compatibility back to macOS Catalina 10.15 and earlier. Intel x86_64 binary runs smoothly on Apple Silicon machines via Rosetta 2.

Native top Menu Bar integration (File, Edit, Insert, View)
Finder .opub document associations and metadata
Subpixel font smoothing tuned for high-DPI Retina screens
Native Dock export progress bar fill during PDF rendering

V5 Disk Image (.dmg)

Linux Distributions

GLIBC 2.28+ • Wayland & X11

5 flexible package options for Ubuntu, Debian, Fedora, Arch, openSUSE, and SteamOS with complete XDG desktop database integration.

Bundled Noto Color Emoji font eliminates missing-glyph tofu boxes
Shared-MIME specification for application/x-openpublisher
Universal sandboxed Flatpak for immutable distributions
Tested on GNOME, KDE Plasma, XFCE, Cinnamon, and MATE

.DEB

.RPM .Flatpak

.AppImage Universal .RUN

FreeBSD Native Port

Tested on FreeBSD 15 • Works on 14 & 13

pkg install ./openpublisher5_amd64-freebsd.pkg

Official native FreeBSD port powered by an Electron runtime bridge. Bypasses Linuxulator overhead for true 60 FPS vector canvas performance.

Tested on FreeBSD 15-CURRENT / 15, backward compatible with 14 and 13
Registers MIME package: openpublisher.xml (/usr/local/share/mime/)
Single-instance IPC forwarding with zero duplicate processes
Full desktop file manager support (Thunar, Caja, Dolphin, PCManFM)

FreeBSD Package (.pkg)

Windows XP Edition

Windows XP SP3 (32-bit x86)

Dedicated standalone client powered by a chromeless Gecko engine (MyPal 68 / Firefox 78 ESR) with modern web standards tailored for legacy x86 hardware.

Zero-height XUL toolbar collapsing preserves active DOM tree & canvas
Embedded modern SVG window controls (minimize, maximize, red close)
Automated desktop web app bridge with auto-padding window headers
Standalone portable SFX package with instant single-click execution

XP Note: Running the legacy XP app on modern Windows (10/11) will result in being unable to drag the app around or close the app due to specific Windows XP tuning.

Windows XP Client (.exe)

Accelerators

Keyboard Shortcuts Cheat Sheet

Designed for rapid muscle memory with platform-native keys (Ctrl on Windows/Linux/BSD, Cmd on macOS). Text formatting shortcuts are guarded to activate only while editing inside a text box.

Windows / Linux / BSD	macOS	Action / Description	Category
`Ctrl` + `S`	`Cmd` + `S`	Save document (4-step atomic save pipeline)	File & Document
`Ctrl` + `O`	`Cmd` + `O`	Open the file explorer to load a document or template	File & Document
`Ctrl` + `P`	`Cmd` + `P`	Open the Print dialog / Export to PDF (300 DPI engine)	File & Document
`Ctrl` + `Z`	`Cmd` + `Z`	Undo last action	Editing & Arrange
`Ctrl` + `Y`	`Cmd` + `Y`	Redo last undone action	Editing & Arrange
`Ctrl` + `C` / `Ctrl` + `X`	`Cmd` + `C` / `Cmd` + `X`	Copy or Cut selected element	Editing & Arrange
`Ctrl` + `V`	`Cmd` + `V`	Paste element onto canvas	Editing & Arrange
`Ctrl` + `Shift` + `V`	`Cmd` + `Shift` + `V`	Paste text without formatting	Editing & Arrange
`Ctrl` + `A`	`Cmd` + `A`	Select All elements on canvas	Editing & Arrange
`Ctrl` + `H`	`Cmd` + `H`	Find & Replace in document	Editing & Arrange
`Delete` / `Backspace`	`Delete`	Remove selected element from the canvas	Editing & Arrange
`↑` `↓` `←` `→` Arrow Keys	`↑` `↓` `←` `→` Arrow Keys	Nudge selected element by 1 pixel for precise alignment	Editing & Arrange
`Shift` + Arrow Keys	`Shift` + Arrow Keys	Nudge selected element by 10 pixels	Editing & Arrange
`Shift` + Click	`Shift` + Click	Select multiple elements at once	Editing & Arrange
`Ctrl` + `Z` (in draw mode)	`Cmd` + `Z` (in draw mode)	Undo Drawing Stroke	Editing & Arrange
`Ctrl` + `B`	`Cmd` + `B`	Toggle Bold	Text Formatting
`Ctrl` + `I`	`Cmd` + `I`	Toggle Italic	Text Formatting
`Ctrl` + `U`	`Cmd` + `U`	Toggle Underline	Text Formatting
`Ctrl` + `Space`	`Cmd` + `Space`	Clear Formatting (strips all manual formatting and resets to default style: Segoe UI, 12px)	Text Formatting
`Shift` + `F3`	`Shift` + `F3`	Cycle Change Case (UPPERCASE, lowercase, Title Case)	Text Formatting
`Ctrl` + `Shift` + `K`	`Cmd` + `Shift` + `K`	Toggle Small Caps	Text Formatting
`Ctrl` + `Shift` + `+`	`Cmd` + `Shift` + `+`	Toggle Superscript	Text Formatting
`Ctrl` + `=`	`Cmd` + `=`	Toggle Subscript	Text Formatting
`Ctrl` + `Shift` + `>`	`Cmd` + `Shift` + `>`	Increase font size by 1px	Text Formatting
`Ctrl` + `Shift` + `<`	`Cmd` + `Shift` + `<`	Decrease font size by 1px	Text Formatting
`Ctrl` + `Z` (in text box)	`Cmd` + `Z` (in text box)	Undo last text change (keystroke-by-keystroke granularity)	Text Formatting
`Ctrl` + Mouse Wheel	`Cmd` + Mouse Wheel	Zoom slider: smooth, continuous zoom from 10% all the way to 500%	View & Navigation
`Spacebar` (Hold)	`Spacebar` (Hold)	Temporarily activates the Pan Tool to drag the canvas	View & Navigation
`F9`	`F9`	Quick Zoom (100%): Toggle between current zoom level and 100% actual size	View & Navigation
`Ctrl` + `Shift` + `L`	`Cmd` + `Shift` + `L`	Whole Page View: Instantly zooms to fit the entire page in the window	View & Navigation
`Ctrl` + `Shift` + `O`	`Cmd` + `Shift` + `O`	Toggle Boundaries on/off (show/hide element boundary boxes)	View & Navigation
Double-click top/bottom 100px	Double-click top/bottom 100px	Enter / Exit Master Page design workspace	View & Navigation
`↑` `↑` `↓` `↓` `←` `→` `←` `→` `B` `A`	`↑` `↑` `↓` `↓` `←` `→` `←` `→` `B` `A`	Konami Code (Easter Egg: Tetris)	Miscellaneous
`F11`	`F11`	Toggle native fullscreen canvas mode	Miscellaneous
`Ctrl` + `Shift` + `D`	`Cmd` + `Shift` + `D`	Toggle Developer HUD & Diagnostics	Miscellaneous

Specifications

System Requirements

Lightweight and optimized for hardware efficiency.

Platform	Supported Versions	Architecture	Recommended RAM	Disk Space
Microsoft Windows	Windows 10, Windows 11	x86_64 / amd64	4 GB (8 GB for 300 DPI)	350 MB
Windows XP	Windows XP SP3 (32-bit)	i386 / x86 (32-bit)	1 GB RAM (512 MB minimum)	250 MB
Apple macOS	macOS 10.15 Catalina & compatible	Intel x86_64 (Rosetta 2 on Apple Silicon)	4 GB	400 MB
Linux Distributions	Any distribution with GLIBC 2.28+	x86_64 / amd64	4 GB	350 MB
FreeBSD	FreeBSD 15 (Tested), 14, and 13	amd64	4 GB	350 MB

Distribution Matrix

All 10 Open Publisher V5 Releases

Direct download URLs hosted on GitHub Releases with verified official release payloads.

Platform	Package Format	Release Payload Filename	Action
Windows	Installer (.exe)	`openpublisher5_amd64-windows.exe`	Download
Windows	Standalone Portable (.exe)	`openpublisher5_amd64-windows-portable.exe`	Download
Windows XP	Dedicated Client (.exe)	`OpenPublisher5-i386-windowsXP.exe`	Download
macOS	Disk Image (.dmg)	`openpublisher5_amd64-macos.dmg`	Download
Linux	POSIX Shell (.run)	`openpublisher5_amd64-linux.run`	Download
Linux	Debian / Ubuntu (.deb)	`openpublisher5_amd64-linux.deb`	Download
Linux	Fedora / RHEL (.rpm)	`openpublisher5_amd64-linux.rpm`	Download
Linux	Flatpak Bundle (.flatpak)	`openpublisher5_amd64-linux.flatpak`	Download
Linux	Universal AppImage (.AppImage)	`openpublisher5_amd64-linux.AppImage`	Download
FreeBSD	Native Package (.pkg)	`openpublisher5_amd64-freebsd.pkg`	Download

Free Desktop Publishing Without Ads or Subscriptions.

True WYSIWYG Canvas

200+ Shapes & 3D Engine

3,403 Clipart & Page Parts

Editorial & Pre-Flight

Open Publisher V5 for Windows

Open Publisher V5 Desktop Workspace

Engineered with exacting precision for print fidelity.

Real Centimeters, Millimeters, and Inches on Canvas

4-Step Atomic Saves & 50-Version Shadow History

Unified Cross-Platform Clipboard & 25-Item Scrapbook

Open Publisher Knowledge Base

Getting Started

Layout & Dimensions

Typography & WordArt

Print & Export

72 Client Features

Non-Blocking Saves & Async IPC Update

Atomic Save Feature

Dedicated Backup and Recovery Directory Migration

Interactive Backup Manager & System Tray Recovery Integration

Canvas Element Copy, Cut & Paste Subsystem Update

Chromium Idle Auto-Save (chrome.idle)

Native Clipboard & Paste Button Integration Update

OpenPublisher V5 Unified Client-Side Clipboard Hijack & Synchronization

Clipboard Scrapbook Subsystem & Ribbon Drawer Integration Update

Microsoft Agent (Clippy) Assistant Integration Update (Remote MKLab Architecture)

Developer HUD "Close to System Tray" & Single Instance Restoration

Expanded Comprehensive Desktop Crash Logs

OpenPublisher V5 Cross-Platform Architecture & Readiness Audit

Custom Teal Green on Dark Scrollbars (Export Queue & Doc Preview)

Developer HUD IPC Traffic Sniffer & Uniform Badge Sizing

Memory Footprint Bar Chart & Live Rate Monitor (Developer HUD)

Developer HUD Tearaway Pop-Out Window (Standalone Window Architecture)

Developer Mode & UI Live Reload Update

OpenPublisher V5 Comprehensive Workspace Directory Tidy-Up Patch

Dynamic Titlebar Dirty State Indication

Prevent Accidental Wrapper Selection & Dragging

Document Presentation Preview (Standalone Tearaway Subsystem)

Update: HTML5 Drag-and-Drop Overlay

OpenPublisher V5 Dynamic Operating System Edition Detection

Dynamic Theme Synchronization & Cross-Session Persistence

Exit Modal UI Modernization

Export & Print Queue Monitor (Queue Management & Multi-Page Print)

Export Priority Elevation

Native Export Progress Bar

External File Modification Watcher Update

Native Fullscreen Toggle (F11)

OpenPublisher V5 First Run Wizard & Onboarding Subsystem

Dashboard Default Page Initialization Fix

OpenPublisher V5 Native FreeBSD Port & Standalone Package Pipeline

Global OS Keyboard Shortcut & Window Restoration

Modal & HUD UI Overhaul

Non-Stacking In-App Idle Save Notice

Animated Image Drop Effect (Ripple, Sparkle & Badge)

Restored Smooth Image Interpolation

Drag-and-Drop Image Asset Import (OP_IMPORT_ASSET)

OpenPublisher V5 Linux Emoji Font Support & First-Run Asset Restore

Application Memory Limits Uncapped

OpenPublisher V5 Multi-Resolution ICO Generation

Multi-Window Lifecycle & Cascading Application Exit Teardown

MyDockFinder Native Menubar, Drag Zone & OpenPublisher App Identity

Developer HUD "Open AppData" Quick Action

Show in File Explorer Button (nw.Shell.showItemInFolder)

Paste Image Separation Update

Always-on-Top Window Pinning Feature

Chromium Power Management (chrome.power Keep-Awake)

Built-in Previous Versions System & Background Snapshot Engine

Smooth Document Content Pour Animation (.opub / .json) & Zero-Flicker Fix

Reboot in Safe Mode (Developer HUD)

Recent Files Feature

OpenPublisher - Renderer Crash Handling & Auto-Restart Recovery

Safe Mode & Cache Reset Flag

Save Notification Update

Window Shadow, Rounded Corners & Omnidirectional Resizing

OPENPUBLISHER UPDATE: FULL CANVAS PASTEBOARD & SHIFT + SCROLL HORIZONTAL SCROLLING

Single Instance Update

Smart Exit Modal (Dirty State Checking)

Native Spellcheck & Misspelling Highlight Support

OpenPublisher V5 Adaptive Startup Screen Modernization

Free Desktop Publishing
Without Ads or Subscriptions.