How to Compress Images for Email Attachments

Email attachment size limits can be frustrating. Most email providers limit attachments to 25 MB, and high-resolution photos from modern smartphones and cameras can quickly exceed this limit. Even if your attachments are within the limit, large images take longer to upload and download, and may be automatically compressed by the email service anyway.

The solution is to compress your images before attaching them to emails. Bagiqo's free Image Optimizer helps you reduce image file size without noticeable quality loss.

Why Compress Images Before Emailing?

• Stay under attachment limits: Reduce large photos to fit within email provider limits.
• Faster sending: Smaller files upload to your email server much more quickly.
• Faster downloading: Recipients can download attachments faster.
• Avoid automatic compression: Gmail, Outlook, and Yahoo all compress images exceeding their limits — often with unpredictable quality.
• Save bandwidth: Smaller attachments use less data for both sender and recipient.

Recommended Image Sizes for Email Attachments

• Photos for viewing: 1920x1080 pixels at 80-85% JPEG quality (about 300-500 KB).
• Product images: 1200x800 pixels at 85% quality (about 200-400 KB).
• Document scans: 1500x2000 pixels at 70% quality (about 400-600 KB).
• Thumbnails in email body: 600x400 pixels at 80% quality (about 80-150 KB).

How to Compress Images for Email Using Bagiqo

1. Go to the Image Optimizer: Open Bagiqo Image Optimizer.
2. Upload your image: Upload a JPG, PNG, or WebP file from your device.
3. Adjust quality: Use the slider to set the output quality. For email, 70-85% works well.
4. Preview and compare: See the original vs compressed file size side by side.
5. Download: Save the optimized image and attach it to your email.

Tips for Keeping Image Quality While Reducing Size

• Resize first: Most photos taken on phones are 4000x3000 pixels or larger. Resize to 1920px on the longest side before compressing.
• Choose JPG format: For photographs, JPG provides the best size-to-quality ratio. Use PNG only for images with text, logos, or transparency.
• Use 80% quality: This setting typically reduces file size by 70-80% with minimal visible quality loss.
• Check the preview: Always preview the compressed image before sending to ensure it looks good.

Email Attachment Size Limits by Provider

• Gmail: 25 MB total attachment limit.
• Outlook.com: 20 MB per message.
• Yahoo Mail: 25 MB total attachment limit.
• ProtonMail: 25 MB total.
• iCloud Mail: 20 MB per message.

Note that these limits apply to the total message including the body text. A safe rule is to keep individual image attachments under 5 MB.

Compress Your Images for Email Now

Ready to send images without worrying about attachment limits? Use the Bagiqo Image Optimizer to compress your photos for email. It is free, fast, and works entirely in your browser.