An X photo can still carry EXIF and GPS

X recompresses many images. The useful privacy step still happens first: inspect the file on your device, then upload a copy that no longer carries GPS, device, or provenance fields you do not want public.

Inspect the file you will upload

Camera originals often include GPS, capture time, device model, and editing software. Generator exports may include Content Credentials. Open that file before you attach it in the X composer — not a screenshot of the draft.

1. Keep the original in your archive.
2. Inspect EXIF, GPS, XMP, and C2PA on the copy you plan to post.
3. Export a sharing copy if those fields should not go out.
4. Inspect the copy again, then upload that file.

What a downloaded X image can tell you

After a post is public, save the image a normal viewer can open. Compare hash, dimensions, and remaining metadata with your source. That tells you whether the delivered copy is byte-identical, resized, or missing common fields.

It does not tell you how X ranks the post, or whether GPS was used internally. If location should stay off the public copy, remove it before upload rather than relying on the public derivative.

Remove metadata you do not want to share

A clean sharing copy is the reliable privacy step. Keep enough visual quality for the post. Do not overwrite the camera original.

A local strip table, not an upload to X

On 2026-10-24 this machine measured a synthetic 640×480 RGB fixture, not a camera photo. The XMP description read back by ExifTool 12.76 was “synthetic fixture, not a camera photo”. ExifTool wrote GPS 10 deg 0' 0.00" N, 20 deg 0' 0.00" E, altitude 12 m Above Sea Level, Make CPKFixture, Model Synthetic-20261024, Artist creatorprivacykit-fixture, and DateTimeOriginal 2026:10:24 09:00:00. The JPEG also had IPTC Keywords “fixture” and IPTC Credit “CPK fixture”. Pillow on this machine is 10.2.0. The file was not posted to X.

The same day, How to post photos or GIFs on X included this tagging-location paragraph: “When you select a photo or GIF, you might see Add location and a list of suggested locations under the image. To tag your photo or GIF with a location, tap Add location to select a location from a list, or tap one of the locations suggested based on your current location or the location where you took the photo.” The article’s question list includes “What happens to the Exif data for my photo?” The answer panel was not in the extract. A curl of that URL with a browser user agent returned HTTP 403, so this page does not quote an Exif answer from X Help.

Strip Metadata’s 2026-10-13 note, opened here on 2026-10-24, says they posted one iPhone 14 Pro Max JPG (3024×4032, about 1.9 MB) from the X website. They report public sizes 510×680, 1536×2048, and 3024×4032 with no EXIF, and a full-size file of 1.81 MB against their original 1.89 MB. They say they tested one public website post and did not test phone apps, direct messages, PNG, or video. Those are their figures, not this fixture.

Deleting only the GPS block left the capture time, camera name, IPTC, and XMP on this JPEG. mat2 0.13.4 did not strip this WebP. The full row list, including PNG, is in docs/evidence/runs/2026-10-24-zalo-kakao-x.json. A downloaded public image can show what viewers receive. It does not show what X stored from the original upload.

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