Release v1.2.0: Major feature additions

- Add PowerPoint export (PPTX/ODP) with slide-level formatting
- Add comprehensive document conversion menu with import/export
- Add interactive table creation helper in markdown editor
- Update documentation with all new features and version history
- Improve menu organization for better user experience

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

CLAUDE.md

@@ -1,13 +1,16 @@
-# Pan Converter
+# PanConverter
 
 ## Overview
-Pan Converter is a cross-platform desktop application for editing and converting Markdown files using Pandoc. It features a rich markdown editor with live preview, multiple themes, and support for exporting to various formats.
+PanConverter is a cross-platform desktop application for editing and converting Markdown files using Pandoc. It features a rich markdown editor with live preview, multiple themes, and comprehensive support for exporting to various document formats.
 
 ## Features
-- **Markdown Editor**: Full-featured editor with syntax highlighting
+- **Markdown Editor**: Full-featured editor with syntax highlighting and toolbar
 - **Live Preview**: Real-time preview of your markdown content
 - **Multiple Themes**: Light, Dark, Solarized, Monokai, and GitHub themes
-- **Format Conversion**: Export to HTML, PDF, DOCX, LaTeX, RTF, ODT, and EPUB using Pandoc
+- **Document Export**: Export to HTML, PDF, DOCX, LaTeX, RTF, ODT, EPUB, PowerPoint (PPTX), and OpenDocument Presentation (ODP)
+- **Spreadsheet Export**: Export markdown tables to Excel (XLSX/XLS) and OpenDocument Spreadsheet (ODS) formats
+- **Document Import & Conversion**: Import various document formats and convert between formats via Pandoc
+- **Table Creation Helper**: Built-in table generator for easy markdown table creation
 - **Cross-Platform**: Runs on Windows, macOS, and Linux
 - **Auto-Save**: Automatic saving every 30 seconds
 
@@ -102,8 +105,9 @@ pan-converter/
 - **marked**: Markdown parsing
 - **highlight.js**: Syntax highlighting
 - **DOMPurify**: HTML sanitization
-- **electron-store**: Persistent storage
+- **XLSX**: Spreadsheet generation for Excel/ODS export
 - **electron-builder**: Application packaging
+- **Custom Storage**: File-based storage system for settings persistence
 
 ## Features Implementation
 
@@ -126,11 +130,27 @@ pan-converter/
 - Five built-in themes
 
 ### Export System
-- Uses Pandoc command-line tool
-- Supports multiple output formats
+- Uses Pandoc command-line tool for document exports
+- Supports multiple output formats (HTML, PDF, DOCX, LaTeX, RTF, ODT, EPUB, PPTX, ODP)
+- Spreadsheet export using XLSX library for table data
+- Import functionality for converting documents to markdown
 - Maintains original file structure
 - Shows error messages if Pandoc not installed
 
+### Table Creation Helper
+- Interactive table generator in toolbar
+- Prompts for row and column count
+- Generates properly formatted markdown tables
+- Includes headers and separator rows
+- Automatically inserts at cursor position
+
+### Document Conversion Menu
+- Separate Convert menu for cross-format operations
+- Import documents from various formats to markdown
+- Convert current file to different formats
+- Supports presentations with proper slide-level formatting
+- Error handling for missing Pandoc installation
+
 ## Platform-Specific Branches
 
 The repository maintains separate branches for platform-specific customizations:
@@ -156,11 +176,13 @@ The generated `.deb` file will:
 
 ### Manual Testing
 1. File Operations: New, Open, Save, Save As
-2. Editor Features: Bold, Italic, Headings, Links, Code, Lists, Quotes
+2. Editor Features: Bold, Italic, Headings, Links, Code, Lists, Quotes, Table Creation
 3. Preview Toggle: Show/hide preview pane
 4. Theme Switching: Test all five themes
-5. Export Functions: Test each export format
-6. Auto-save: Verify 30-second auto-save works
+5. Export Functions: Test each export format including PowerPoint and spreadsheets
+6. Import/Conversion: Test document import and format conversion
+7. Table Helper: Test table generation with different row/column counts
+8. Auto-save: Verify 30-second auto-save works
 
 ### Platform Testing
 Test on:
@@ -170,8 +192,15 @@ Test on:
 
 ## Known Issues
 - ICO and ICNS icons need manual conversion from PNG
-- Pandoc must be installed separately
+- Pandoc must be installed separately for all export functionality
 - Large files may cause performance issues
+- AppImage requires --no-sandbox flag on some systems
+- Windows/Mac builds require platform-specific build environments
+
+## Version History
+- **v1.2.0**: Added PowerPoint export, document conversion menu, table creation helper, spreadsheet export
+- **v1.1.0**: Added Excel/ODS spreadsheet export, updated author information, renamed to PanConverter
+- **v1.0.0**: Initial release with basic markdown editing, themes, and Pandoc export
 
 ## Future Enhancements
 - [ ] Add spell checking
@@ -181,6 +210,7 @@ Test on:
 - [ ] Plugin system for custom exporters
 - [ ] Cloud sync capabilities
 - [ ] Collaborative editing
+- [ ] Improved table editing interface
 
 ## License
 MIT License

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pan-converter",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "description": "Cross-platform Markdown editor and converter using Pandoc",
   "main": "src/main.js",
   "scripts": {

src/index.html

@@ -59,6 +59,15 @@
                     <path d="M15 21c3 0 7-1 7-8V5c0-1.25-.757-2.017-2-2h-4c-1.25 0-2 .75-2 1.972V11c0 1.25.75 2 2 2h.75c0 2.25.25 4-2.75 4v3c0 1 0 1 1 1z"></path>
                 </svg>
             </button>
+            <button id="btn-table" title="Insert Table">
+                <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+                    <rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
+                    <line x1="3" y1="9" x2="21" y2="9"></line>
+                    <line x1="3" y1="15" x2="21" y2="15"></line>
+                    <line x1="9" y1="3" x2="9" y2="21"></line>
+                    <line x1="15" y1="3" x2="15" y2="21"></line>
+                </svg>
+            </button>
             <div class="toolbar-separator"></div>
             <button id="btn-preview-toggle" title="Toggle Preview">
                 <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">

src/main.js

@@ -87,6 +87,9 @@ function createMenu() {
             { label: 'ODT', click: () => exportFile('odt') },
             { label: 'EPUB', click: () => exportFile('epub') },
             { type: 'separator' },
+            { label: 'PowerPoint (PPTX)', click: () => exportFile('pptx') },
+            { label: 'OpenDocument Presentation (ODP)', click: () => exportFile('odp') },
+            { type: 'separator' },
             { label: 'Excel (XLSX)', click: () => exportSpreadsheet('xlsx') },
             { label: 'Excel Legacy (XLS)', click: () => exportSpreadsheet('xls') },
             { label: 'OpenDocument Spreadsheet (ODS)', click: () => exportSpreadsheet('ods') }
@@ -112,6 +115,32 @@ function createMenu() {
         { label: 'Select All', accelerator: 'CmdOrCtrl+A', role: 'selectAll' }
       ]
     },
+    {
+      label: 'Convert',
+      submenu: [
+        {
+          label: 'Import Document...',
+          accelerator: 'CmdOrCtrl+I',
+          click: importDocument
+        },
+        { type: 'separator' },
+        {
+          label: 'Convert Current File',
+          submenu: [
+            { label: 'To Markdown', click: () => convertToFormat('md') },
+            { label: 'To HTML', click: () => convertToFormat('html') },
+            { label: 'To PDF', click: () => convertToFormat('pdf') },
+            { label: 'To DOCX', click: () => convertToFormat('docx') },
+            { label: 'To LaTeX', click: () => convertToFormat('latex') },
+            { label: 'To RTF', click: () => convertToFormat('rtf') },
+            { label: 'To ODT', click: () => convertToFormat('odt') },
+            { label: 'To EPUB', click: () => convertToFormat('epub') },
+            { label: 'To PPTX', click: () => convertToFormat('pptx') },
+            { label: 'To ODP', click: () => convertToFormat('odp') }
+          ]
+        }
+      ]
+    },
     {
       label: 'View',
       submenu: [
@@ -238,6 +267,78 @@ function exportSpreadsheet(format) {
   mainWindow.webContents.send('get-content-for-spreadsheet', format);
 }
 
+function importDocument() {
+  const files = dialog.showOpenDialogSync(mainWindow, {
+    properties: ['openFile'],
+    filters: [
+      { name: 'Documents', extensions: ['docx', 'odt', 'rtf', 'html', 'tex', 'epub', 'pdf'] },
+      { name: 'Presentations', extensions: ['pptx', 'odp'] },
+      { name: 'All Files', extensions: ['*'] }
+    ]
+  });
+
+  if (files && files[0]) {
+    const inputFile = files[0];
+    const outputFile = inputFile.replace(/\.[^/.]+$/, '.md');
+    
+    // Convert to markdown using pandoc
+    const pandocCmd = `pandoc "${inputFile}" -t markdown -o "${outputFile}"`;
+    
+    exec(pandocCmd, (error, stdout, stderr) => {
+      if (error) {
+        dialog.showErrorBox('Import Error', `Failed to import: ${error.message}\n\nMake sure Pandoc is installed.`);
+      } else {
+        // Open the converted markdown file
+        currentFile = outputFile;
+        const content = fs.readFileSync(outputFile, 'utf-8');
+        mainWindow.webContents.send('file-opened', { path: outputFile, content });
+        
+        dialog.showMessageBox(mainWindow, {
+          type: 'info',
+          title: 'Import Complete',
+          message: `Document imported successfully as ${outputFile}`,
+          buttons: ['OK']
+        });
+      }
+    });
+  }
+}
+
+function convertToFormat(format) {
+  if (!currentFile) {
+    dialog.showErrorBox('Error', 'Please save or open a file first');
+    return;
+  }
+
+  const outputFile = dialog.showSaveDialogSync(mainWindow, {
+    defaultPath: currentFile.replace(/\.[^/.]+$/, `.${format}`),
+    filters: [
+      { name: format.toUpperCase(), extensions: [format] }
+    ]
+  });
+
+  if (outputFile) {
+    // For presentations, add slide level for better conversion
+    let pandocCmd = `pandoc "${currentFile}" -o "${outputFile}"`;
+    if (format === 'pptx' || format === 'odp') {
+      pandocCmd = `pandoc "${currentFile}" --slide-level=2 -o "${outputFile}"`;
+    }
+    
+    exec(pandocCmd, (error, stdout, stderr) => {
+      if (error) {
+        dialog.showErrorBox('Conversion Error', `Failed to convert: ${error.message}\n\nMake sure Pandoc is installed.`);
+      } else {
+        dialog.showMessageBox(mainWindow, {
+          type: 'info',
+          title: 'Conversion Complete',
+          message: `File converted successfully to ${outputFile}`,
+          buttons: ['OK']
+        });
+      }
+    });
+  }
+}
+
 function setTheme(theme) {
   store.set('theme', theme);
   mainWindow.webContents.send('theme-changed', theme);

src/renderer.js

@@ -60,8 +60,64 @@ document.getElementById('btn-link').addEventListener('click', () => insertMarkdo
 document.getElementById('btn-code').addEventListener('click', () => insertMarkdown('`', '`'));
 document.getElementById('btn-list').addEventListener('click', () => insertMarkdown('- ', ''));
 document.getElementById('btn-quote').addEventListener('click', () => insertMarkdown('> ', ''));
+document.getElementById('btn-table').addEventListener('click', insertTable);
 document.getElementById('btn-preview-toggle').addEventListener('click', togglePreview);
 
+// Table insertion function
+function insertTable() {
+    const rows = prompt('Number of rows:', '3');
+    const cols = prompt('Number of columns:', '3');
+    
+    if (!rows || !cols) return;
+    
+    const numRows = parseInt(rows);
+    const numCols = parseInt(cols);
+    
+    if (isNaN(numRows) || isNaN(numCols) || numRows < 1 || numCols < 1) {
+        alert('Please enter valid numbers for rows and columns');
+        return;
+    }
+    
+    let table = '\n';
+    
+    // Header row
+    table += '|';
+    for (let j = 0; j < numCols; j++) {
+        table += ` Header ${j + 1} |`;
+    }
+    table += '\n';
+    
+    // Separator row
+    table += '|';
+    for (let j = 0; j < numCols; j++) {
+        table += ' --- |';
+    }
+    table += '\n';
+    
+    // Data rows
+    for (let i = 0; i < numRows; i++) {
+        table += '|';
+        for (let j = 0; j < numCols; j++) {
+            table += ` Cell ${i + 1}-${j + 1} |`;
+        }
+        table += '\n';
+    }
+    table += '\n';
+    
+    // Insert table at cursor position
+    const start = editor.selectionStart;
+    const end = editor.selectionEnd;
+    
+    editor.value = editor.value.substring(0, start) + table + editor.value.substring(end);
+    
+    // Set cursor after the table
+    editor.selectionStart = editor.selectionEnd = start + table.length;
+    editor.focus();
+    
+    // Trigger input event
+    editor.dispatchEvent(new Event('input'));
+}
+
 // Markdown insertion helper
 function insertMarkdown(before, after) {
     const start = editor.selectionStart;