How to choose the right image dimensions
Choose dimensions based on where the image will be viewed, not just the largest available size.
Start with the destination
A profile image, web page upload, printable photo, and classroom assignment all need different dimensions. If the destination displays the image at a small size, uploading the camera original can be unnecessary.
Common choices
Use larger dimensions when the image may be printed or zoomed. Use smaller dimensions for email, web previews, and forms that reject large files.
| Use case | Typical direction | Note |
|---|---|---|
| Email preview | Reduce dimensions and use JPG | Keeps attachments lighter |
| Transparent graphic | Keep PNG or WebP | Preserves transparency |
| Photo from iPhone | Convert HEIC to JPG if needed | Useful for forms that reject HEIC |
Privacy note
Browser canvas export often removes much of the original metadata. That can help privacy, but do not rely on it as a complete redaction process for sensitive images.