Every email provider has attachment limits. When you try to send vacation photos, scanned documents, or product images, you've probably seen the dreaded "Attachment too large" error.
Email Attachment Limits (2026)
| Provider | Max Attachment | Max Total per Email |
|---|---|---|
| Gmail | 25 MB | 25 MB |
| Outlook | 20 MB | 20 MB |
| Yahoo Mail | 25 MB | 25 MB |
| iCloud Mail | 20 MB | 20 MB |
| ProtonMail | 25 MB | 25 MB |
A single photo from a modern smartphone is 3-8 MB. That means you can only attach 3-4 photos before hitting the limit.
Method 1: Compress Without Resizing
If you need to keep the original dimensions (for printing later), compression is your best option.
- Go to the Compress Tool.
- Drag & Drop your images.
- Adjust the quality slider — 70-80% gives a great balance of size and quality.
- Download the compressed versions.
Typical results:
- 5 MB iPhone photo → 800 KB (84% smaller)
- 8 MB DSLR photo → 1.2 MB (85% smaller)
Method 2: Resize + Compress (Maximum Reduction)
For email, nobody needs a 4000px wide image. Screens are typically 1920px or less.
- Go to the Resize Tool.
- Set the width to 1600px (more than enough for any screen).
- The height adjusts automatically to keep proportions.
- Then run the result through the Compress Tool.
Result: A 7 MB photo becomes 200-400 KB — you can attach 50+ photos in one email!
Method 3: Convert to WebP
WebP is 25-34% smaller than JPEG at the same quality.
- Use the Image Converter.
- Select WebP as the output format.
- Download.
Tip: Most modern email clients can display WebP inline. However, if the recipient uses older software, stick with JPG.
Pro Tips
- Batch process: Select multiple images at once to save time.
- Check the total: Add up all attachment sizes before hitting send.
- Privacy first: Our tools run in your browser — your photos never leave your device.