What EXIF actually stores
EXIF is a standard for embedding metadata in image files. A typical camera JPEG includes:
- Camera and lens: make, model, lens name, focal length.
- Exposure: aperture, shutter speed, ISO, exposure compensation.
- Time: capture date and time, sometimes sub-second and time zone.
- Orientation: which way the camera was held.
- GPS: latitude, longitude, altitude, if the camera or phone recorded it.
- Software: the app or editor that last saved the file.
None of this is visible in the image. It is a separate data block, which is why a photo can look identical while its metadata is completely gone.
Why borders and screenshots erase it
Most “add a border” workflows redraw the image onto a new canvas and export a fresh file. That new file only contains what the editor chooses to write. If the editor does not copy the EXIF block, the result is a clean image with no camera data.
Common ways metadata disappears:
- Screenshotting a photo instead of exporting it.
- “Save for Web” or “Export for social” presets that strip metadata to reduce size.
- Messaging apps and social platforms that rewrite uploads.
- Phone collage/frame apps that flatten and re-encode the image.
- Converting to PNG, which has no standard EXIF container.
What white-border does differently
The editor reads the original file, draws the bordered image on a canvas, and writes the original EXIF back into the exported JPEG. The camera, lens, exposure, and capture date are carried over rather than re-created.
Two limits are worth knowing:
- JPEG only. PNG does not have a standard EXIF block. If metadata matters, export JPEG.
- HEIC needs conversion. A HEIC file is decoded locally first; the original EXIF is written into the JPEG export when available.
JPEG vs PNG
JPEG is the right format for photographs: smaller files, standard EXIF support, and quality that is visually transparent at 90–95. PNG is better for graphics, screenshots, and images with flat color or transparency — but it is not the format to choose if you need camera metadata.
How to check a file
On macOS, open the image in Preview and choose Tools → Show Inspector. On Windows, right-click → Properties → Details. You should see camera make/model, dimensions, and capture date. If those fields are blank, the metadata is gone.
Keep the data, lose the clutter
A border should be a presentation choice, not a reason to throw away the file’s history. Export a JPEG, check the details panel, and keep the original negative-style file archived separately.
Ready to try? Open the editor and export a JPEG; the metadata panel will show what survived.