Understanding Image Technical Properties
Before submitting documents or photos to competitive exam portals, universities, or web content systems, inspecting raw file attributes helps prevent upload errors:
- Raw Bytes vs Formatted Size: Portals typically have strict byte thresholds (e.g. 50 KB = 51,200 bytes). Knowing exact byte sizes ensures your image is under the limit.
- Megapixels (MP): Calculated as
(Width × Height) / 1,000,000. A 4000×3000 photo is 12 Megapixels. - MIME Type: The official media identifier used by internet standards (e.g.,
image/jpegorimage/png).
Frequently Asked Questions
Why don't you show camera EXIF metadata (shutter speed, GPS)?
Many web browsers and canvas engines strip internal camera EXIF metadata to protect user privacy. We only report genuine file attributes accessible to standard browser APIs.
Is my file uploaded to inspect this information?
No. The File and HTML5 Image APIs read headers directly on your local device.