Why PNG files can cause issues
Large image files are one of the most common reasons email attachments fail or take too long to send. Oversized PNGs and high-resolution photos are especially troublesome.
Convert PNG to JPG instantly
Use SecureConvertHub to convert your images in seconds. Everything runs directly in your browser, so your files stay private.
When to use this conversion
Use this page when you need to make an image smaller before attaching it to email or sending it to a coworker, customer, or client.
How to convert PNG to JPG
- Add up to 5 images using drag-and-drop or the file picker.
- Choose your preset and output format.
- Convert, then download your ZIP.
PNG vs JPG
High-quality originals preserve more data but often create large files, while optimized JPG or WebP versions are much easier to email. Smaller files are better for fast sharing.
Compression Presets
Presets automatically adjust compression and image size depending on how the image will be used.
| Preset | Compression | Max Dimensions | Typical File Size | Best For |
|---|---|---|---|---|
| Web | Medium | 1920px | 200KB – 800KB | Websites, blogs, landing pages |
| Social | Medium-High | 1200px | 100KB – 400KB | Instagram, Facebook, LinkedIn |
| High | 1200px | 50KB – 200KB | Email attachments and quick sharing | |
| Low (Highest Quality) | No resize | 1MB+ | Printing photos or marketing materials |
Actual file size depends on the original image resolution and format.
Common pitfalls
- Email providers may still impose attachment size limits.
- Smaller JPG files may slightly reduce image quality.
FAQ
What image format is best for email attachments?
JPG is usually the best choice because it is widely supported and much smaller than PNG.
Is SecureConvertHub safe to use?
Yes. All file conversions happen locally in your browser. Your images never leave your device.
What makes SecureConvertHub different from other converters?
Most online converters upload your files to a server for processing. SecureConvertHub performs conversions directly in your browser for better privacy, faster performance, and no file uploads. Some HEIC files may use a secure compatibility mode for best results.
Do I need to install anything?
No. SecureConvertHub runs entirely in your browser. No software installation is required.