PDX Editor Enhanced is an upgraded version with professional export capabilities, image support, and an eye-friendly theme designed for extended writing sessions.
What changed: Previously, PDF export was just a browser print suggestion. Now it's a real PDF generator.
Features:
- ✅ Native PDF generation using
printpdflibrary - ✅ Arabic font embedding - Noto Sans Arabic is embedded in the PDF
- ✅ RTL (Right-to-Left) support - Arabic text renders correctly
- ✅ Proper text positioning - Headings, paragraphs, and lists are properly laid out
- ✅ Multi-page support - Automatic page breaks when content is too long
How to use:
- Go to
File→Export as...→PDF (Real Export) - Choose save location
- PDF is generated with full Arabic support
Technical details:
// Embeds Arabic font directly into PDF
let font_bytes = include_bytes!("../assets/fonts/NotoSansArabic-Regular.ttf");
let font = doc.add_external_font(font_bytes.as_ref())?;
// Supports RTL text positioning
let x_pos = if is_rtl { 190.0 } else { x_start };What changed: Added ability to export entire document as a PNG image.
Features:
- ✅ Export document as high-resolution PNG
- ✅ Configurable width/height (default 1200x1600)
- ✅ Perfect for sharing on social media or embedding in presentations
How to use:
- Go to
File→Export as...→PNG Image (Real Export) - Choose save location
- PNG file is created
Use cases:
- Share document previews on social media
- Create thumbnails
- Embed in presentations
- Print as image
What changed: Documents can now contain embedded images, not just text.
Features:
- ✅ Insert images from local files
- ✅ Multiple image formats supported: PNG, JPG, JPEG, GIF, WebP
- ✅ Automatic rendering in preview mode
- ✅ Markdown syntax:
 - ✅ Images saved in document structure
How to use:
Method 1 - Using Menu:
- Go to
File→Insert Image... - Select image file
- Image markup is inserted at cursor position
Method 2 - Markdown Syntax: Type directly in editor:
Example document with image:
# My Document
This is a paragraph.
Another paragraph after the image.New Node Type:
Node::Image {
path: String, // File path
alt_text: String, // Alternative text
width: Option<f32>, // Optional width
height: Option<f32>, // Optional height
}What changed: New theme specifically designed for long writing sessions.
Features:
- ✅ Reduced eye strain - Soft green-tinted background
- ✅ Lower contrast - Gentler on eyes than pure black/white
- ✅ Warm color palette - Based on research on comfortable reading
- ✅ Perfect for 2+ hour sessions
Color Science:
AppTheme::Comfort => {
text_color: rgb(45, 55, 65), // Soft blue-gray (not harsh black)
background: rgb(248, 250, 245), // Very soft green tint
panel: rgb(252, 253, 250), // Warm white with green tint
}Why these colors?
- Green tint reduces blue light exposure
- Lower contrast reduces eye fatigue
- Warm tones are more comfortable for extended reading
- Based on studies showing green light is less straining
How to activate:
- Go to
Thememenu - Select
🌿 Comfort
Comparison:
- Light theme: High contrast, pure white - good for short sessions
- Dark theme: Pure black - good for low-light environments
- Comfort theme: Balanced, green-tinted - optimal for 2+ hour writing
Problem: The old version just suggested browser print, which:
- Didn't embed fonts properly
- Broke Arabic text rendering
- Couldn't customize layout
- Not reliable across browsers
Solution:
use printpdf::*;
fn export_as_pdf(document: &PdxDocument) -> Result<Vec<u8>, String> {
// 1. Create PDF document
let (doc, page1, layer1) = PdfDocument::new(
&document.metadata.title,
Mm(210.0), Mm(297.0), // A4 size
"Layer 1"
);
// 2. Embed Arabic font
let font = doc.add_external_font(font_bytes)?;
// 3. Render nodes with proper positioning
render_node_to_pdf(&document.content, &layer, &font, ...);
// 4. Return as bytes
doc.save(&mut buffer)?;
Ok(buffer)
}Benefits: ✅ Fonts are embedded ✅ Arabic renders perfectly ✅ Consistent across all platforms ✅ Full control over layout
New resource management:
struct PdxApp {
loaded_images: HashMap<String, egui::TextureHandle>,
// ...
}
fn load_images_from_content(&mut self, ctx: &egui::Context) {
// 1. Collect all image paths from document
let mut image_paths = Vec::new();
collect_image_paths(&self.document.content, &mut image_paths);
// 2. Load each image as texture (cached)
for path in image_paths {
if !self.loaded_images.contains_key(&path) {
let img = image::open(&path)?;
let texture = ctx.load_texture(&path, color_image, ...);
self.loaded_images.insert(path, texture);
}
}
}Features:
- Images loaded on-demand
- Cached for performance
- Converted to egui textures for rendering
- Supports RGBA with transparency
# Travel Blog
## Day 1: Cairo
We visited the pyramids today!
The pyramids were amazing. Here's a close-up:
## Day 2: Alexandria
The Mediterranean coast is beautiful.
# Product Manual - دليل المنتج
## English Section
This is the product description.
---
## القسم العربي
هذا هو وصف المنتج باللغة العربية.# Research: Effect of Green Light on Eye Strain
## Abstract
This study examines...
## Methodology
We used the following equipment...
## Results
As shown in Figure 1, the green-tinted display reduced...
## Arabic Summary - ملخص عربي
أظهرت النتائج أن...| Theme | Best For | Background | Text Color | Eye Strain |
|---|---|---|---|---|
| Light | Short tasks, high ambient light | Pure white (250,250,250) | Near black (20,20,20) | Medium |
| Dark | Low light, night work | Dark gray (30,30,35) | Light gray (230,230,230) | Low-Medium |
| Midnight | Very low light, night | Deep blue (15,20,35) | Blue-gray (200,210,230) | Low |
| Sepia | Reading, warm tone lovers | Sepia (245,235,215) | Dark brown (60,50,40) | Low |
| Comfort | Long sessions (2+ hours) | Soft green (248,250,245) | Blue-gray (45,55,65) | Very Low |
Recommendation: Use Comfort theme for writing sessions longer than 1 hour.
- Images are cached in HashMap
- Textures loaded once, reused
- Old textures automatically freed by egui
- Streaming to buffer (no temp files)
- Font embedded once per document
- Efficient text positioning
- Lazy loading (only when needed)
- Format auto-detection
- RGBA conversion for transparency
[dependencies]
eframe = "0.30"
egui = "0.30"
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"
rfd = "0.15"
image = { version = "0.25", features = ["png", "jpeg"] }
printpdf = { version = "0.7", features = ["embedded_images"] }
chrono = "0.4"
unicode-bidi = "0.3"
arabic_reshaper = "0.4"Solution: ✅ Fixed! Font embedding now includes proper Arabic ligatures.
Solution: Check that image paths are correct and files exist. Use absolute paths or paths relative to document.
Cause: Usually missing font file or printpdf dependency
Solution: Ensure NotoSansArabic-Regular.ttf is in assets/fonts/
Solution: Resize images before inserting, or use thumbnails
- Image resizing in editor - Drag handles to resize
- Image compression - Automatic optimization
- Cloud storage - Google Drive / Dropbox integration
- Collaborative editing - Real-time multi-user
- More themes - Nord, Gruvbox, Solarized
- LaTeX support - Math equations
- Tables - Markdown-style tables
- Footnotes - Academic writing support
Breaking changes:
- None! Fully backward compatible
New features to try:
- Switch to Comfort theme
- Insert an image
- Export as real PDF
- Export as PNG
Recommended workflow:
- Write in Comfort theme (reduced eye strain)
- Insert images with
 - Export to PDF for sharing
- Export to PNG for social media
Create an images/ folder next to your .pdx file:
my-pdx-project/
├── document.pdx
└── images/
├── photo1.jpg
├── photo2.png
└── diagram.png
Even for code blocks, Comfort theme reduces strain:
// This code is easier to read in Comfort theme
fn main() {
println!("Hello, World!");
}Prepare markdown first:
Then paste all at once.
Use Preview mode to see how PDF will look.
What's new:
- ✅ Real PDF export with Arabic font embedding
- ✅ PNG image export
- ✅ Image embedding in documents
- ✅ Comfort theme for long writing sessions
What's improved:
- ✅ Better RTL text handling
- ✅ Performance optimizations
- ✅ More professional exports
- ✅ Enhanced user experience
What's the same:
- ✅ All original features still work
- ✅ Same file format (.pdx)
- ✅ Backward compatible
- ✅ Same editor interface
Found a bug? Want a feature?
- Open an issue
- Submit a pull request
- Join discussions
GNU3 GENERAL PUBLIC LICENSE
Made with ❤️ for writers who care about their eyes and their documents.