JPG to PDF Converter - Merge images to PDF
Drag and drop multiple images to sort them and merge into a clean PDF document with one click.
Supports uploading all image files including PNG, WebP, and more, not just JPG.
Page & Layout Options
Selected Files List (드래그하여 순서 변경 가능)
0 documents pending- No documents selected.
How to Use JPG to PDF Converter
Upload Images
Drag and drop your photos into the drop zone or click to browse.
Sort & Configure
Drag thumbnails to arrange page order and adjust margins or size settings.
Generate & Download
Click the process button to create your PDF instantly on your device.
💡 Image to PDF Tips
Universal Format Support
Seamlessly merge web formats like WebP alongside standard PNG and JPG images.
Ultimate Local Privacy
Your photos never leave your device, ensuring confidential scans or IDs remain 100% private.
⚙ Browser-Based Embedding Mechanism and XObject Streams
Within a PDF, images are handled differently than text or vector graphics. Every raster image is registered internally as an XObject (External Object) stream dictionary. This contains critical metadata such as pixel dimensions, color space, bits per component, along with the raw binary stream.
HeeyaTools utilizes the WebAssembly-powered pdf-lib engine locally. Uploaded JPEG files are embedded directly into the PDF container stream (/DCTDecode filter) without lossy re-encoding. WebP or ultra-high-resolution images are scaled dynamically via local HTML5 Canvas API ensuring optimal viewer compatibility and memory safety.
🔒 Offline Privacy and Absolute Data Security
Uploading sensitive scans like IDs, contracts, or architectural blueprints to remote web servers introduces critical data privacy risks. Traditional web services retain temporary files on backend servers during processing.
This tool guarantees 100% Client-Side execution. Image arrays are processed strictly inside your device's isolated RAM. Data is never uploaded over the internet, providing ultimate data security compliant with global enterprise privacy standards.