JPG to PDF - Free Online Image Merger Tool
JPG to PDF Converter is a professional online image processing tool that helps you quickly merge multiple images into PDF documents. Supporting JPG, PNG and other common formats, it uses local browser processing technology to ensure file security and privacy protection.Core Features
Batch Image Merging
Upload multiple JPG, JPEG, PNG images at once and easily adjust order through drag-drop interface. System automatically optimizes image formats, supports mixing different image types, and intelligently handles various resolutions and sizes.Custom Page Settings
Choose from standard page sizes like A4, Letter, Legal with portrait or landscape orientation. Precisely adjust page margins (0-50mm) and balance file size with clarity using quality slider.Local Secure Processing
Uses WebAssembly technology to complete all conversions in browser without uploading files to servers. Fast processing speed averaging under 1 second per image, supports offline use, completely protects user privacy.Use Cases
Business Office
Create product catalogs, organize contract files, archive invoices and receipts, merge multiple scans into single PDF document. Supports high-quality output meeting professional printing requirements.Personal Creation
Create photo albums, portfolio presentations, travel record organization. Maintains original image quality, generates PDFs suitable for sharing and long-term storage.Technical Features
Performance Optimization
Native JavaScript implementation requiring no plugin installation. Supports batch processing with memory-optimized design for high-resolution images. Responsive interface adapts to all devices.Strong Compatibility
Supports Chrome, Firefox, Safari, Edge and other mainstream browsers. Compatible with Windows, Mac, Linux operating systems, equally smooth on mobile devices.How to Use
- Upload Images: Drag-drop or click to select JPG, PNG images
- Adjust Order: Drag thumbnails to arrange page sequence
- Set Parameters: Choose page size, orientation and quality
- Generate PDF: Click convert button for instant generation
- Download File: Preview and download PDF document after confirmation
Frequently Asked Questions
Q: What image formats are supported?A: Supports JPG, JPEG, PNG, WebP, BMP, GIF formats with maximum 10MB per file.
Q: How many images can be processed?
A: No theoretical limit, actual depends on device memory, typically handles hundreds of images easily.
Q: How to optimize PDF file size?
A: Adjust quality slider to 0.6-0.8 to significantly reduce file size without affecting visual quality.