How to Convert JPEG to PDF
- Select one or more JPEG images.
- Review the page order (drag to reorder if needed).
- Enable Preserve transparency if your image has an alpha channel.
- Click Convert to generate the PDF.
- Click Download to save the file.
About JPEG and PDF
About JPEG
JPEG (Joint Photographic Experts Group) is the most common format for photographs. It uses lossy compression to reduce file size while maintaining acceptable visual quality.
Pros: Small file size, universal support, ideal for photos.
Cons: Lossy compression reduces quality, no transparency support.
Best for: Photos, social media images, web backgrounds.
About PDF
PDF (Portable Document Format) is a file format developed by Adobe for presenting documents reliably across software, hardware, and operating systems. It preserves formatting, fonts, images, and layout regardless of the viewer.
Pros: Universal compatibility, preserves layout, supports text search, password protection, and digital signatures.
Cons: Not ideal for editing, can be large, requires a reader application.
Best for: Documents, contracts, reports, e-books, forms.
Format Comparison
| Format | Transparency | Compression | Best Use |
|---|---|---|---|
| No | Various | Documents | |
| PNG | Yes | Lossless | Graphics |
| JPEG | No | Lossy | Photos |
| WebP | Yes | Lossy/Lossless | Modern Web |
Privacy & Security
This tool processes files entirely within your browser using the Canvas API and PDF.js (Mozilla). No data is sent to any server. You can verify this by using the browser's developer tools to inspect network activity.
Supported browsers: Chrome 80+, Firefox 113+, Safari 16.4+, Edge 80+.
Frequently Asked Questions
- Is this converter free?
- Yes. All processing runs in your browser at no cost.
- Are files uploaded to a server?
- No. Files never leave your device.
- Does it work offline?
- Yes. After the first visit the app works fully offline as a PWA.
- Can I convert JPEG to PDF on iPhone?
- Yes. The converter works in Safari on iPhone and iPad (iOS 16.4+).
- Does it work on Android?
- Yes. Chrome on Android is fully supported.
- Is registration required?
- No account or registration needed.
- Is there a file size limit?
- The limit depends on your browser and device memory. Files up to 100 MB are generally supported.
- What browsers are supported?
- Chrome 80+, Firefox 113+, Safari 16.4+, and Edge 80+.
- Can I convert multiple images into one PDF?
- Yes. Select multiple images and they will be combined into a single PDF, one image per page.
- What open-source libraries are used?
- PDF.js (by Mozilla) is used to render PDFs. All other processing uses the native Canvas API.