Email attachment limits are still a common problem. A few phone photos can easily exceed the size allowed by mail providers or make messages slow to send. Compressing images before attaching them keeps emails lighter and easier for recipients to download.
NaughtyPDF’s image compressor, resize image tool, and PNG to JPG converter can help prepare images for email without uploading them.
Resize First
Most email images do not need full camera resolution. If a photo is 4000 pixels wide, resizing it to 1200 or 1600 pixels wide can make a large difference while still looking good on screens. Keep aspect ratio locked so the image does not stretch.
Resize before compression. Removing unnecessary pixels is usually cleaner than aggressively lowering quality.
Use JPG for Photos
JPG is usually the best format for photo attachments. It is widely supported and compresses photographic content efficiently. If your image is a PNG photo, converting it to JPG can reduce size substantially.
Keep PNG for screenshots, diagrams, and graphics where text clarity matters. If a screenshot is too large, resize it first.
Compress With a Sensible Target
For email, a target around 0.5 MB per image is a practical starting point. It keeps attachments manageable while preserving enough quality for most screen viewing. If the image is very important or detailed, use a larger target. If you need to send many images, use a smaller target or a ZIP folder.
The image compressor shows before and after sizes so you can verify the reduction.
Check the Result
Open the compressed image before attaching it. Look for visible artifacts, blurry text, or color banding. If quality is too low, raise the quality setting or use a larger target size.
For client work, keep the original file separately and send compressed copies only for review.
Suggested Workflow
- Resize oversized images.
- Convert photos to JPG if needed.
- Compress with the Email preset.
- Preview the result.
- Attach the smaller file to your message.
FAQ
What size should email images be?
For typical screen viewing, 1200 to 1600 pixels wide is often enough.
Should I use PNG or JPG for email?
Use JPG for photos and PNG for screenshots or graphics with text.
Can I compress several images?
Yes. Compress each image or batch convert formats before sending.
Are my images uploaded?
No. NaughtyPDF processes images locally in your browser.
Final Recommendation
For email, reduce dimensions first, use JPG for photos, and apply moderate compression. This keeps messages small without making images look poor.