How to check that metadata is really gone

Updated: September 4, 2026

Any metadata cleaning service asks you to take it on trust: the file went out, the file came back, and what changed inside is invisible. That is an uncomfortable position, especially where privacy is the point, and the right response is to check.

The good news: checking needs nothing installed. Everything required is already in your operating system. Below are three methods, simplest first — and separately, what is supposed to remain in a cleaned file, so you do not mistake normal for broken.

Method one: file properties on Windows

1. Find the file in Explorer and right-click it.
2. Choose Properties at the very bottom of the menu.
3. Switch to the Details tab — the third tab in the window that opens.
4. Scroll the list. On an original photo you will see camera and date sections, and further down GPS latitude and GPS longitude. On a document: author, organisation and editing time.
5. Open the same window on the cleaned file and compare. The lines should be empty or gone from the list entirely.

Compare two actual files rather than trusting memory. Explorer caches thumbnails and sometimes shows stale details — if something looks off, press F5 in the folder and reopen the properties.

Method two: the inspector on macOS

Open the file in Preview, then choose Show Inspector from the Tools menu. Tabs appear: general information, EXIF, and for a geotagged shot a separate tab with a map and a pin on it.

This is the most vivid method of the three: the original photo has the map tab, the cleaned one simply does not — it disappears entirely rather than showing empty. Documents and PDFs work similarly: Tools, then Show Inspector in the PDF viewer.

Method three: upload the file again

The quickest option if you already use the tool. Upload the cleaned file for cleaning a second time. The difference shows for signed-in users: the account history records how many service fields were removed on each run, and the second upload gets no such note — there was nothing left to remove.

The advantage is that it does not depend on which fields your operating system knows how to display. It is also the least visual, so for a first check start with the file properties.

What should remain in a cleaned file

While checking, it is easy to be alarmed that some information is still there. That is normal: not everything the system shows is data about you. The following stays in the file, and should:

• image dimensions in pixels, colour depth, compression type — without these the file would not open at all;
• the embedded ICC colour profile in images — it describes how to display colours, and we keep it deliberately: without it the picture looks noticeably washed out on some screens;
• duration, resolution, codec and bitrate for video and audio — these are characteristics of the recording itself;
• page count and sheet size for a PDF;
• the file modification date in your file manager — that is set by the file system when the file is saved, and is not stored inside the file.

The last point raises the most questions. The value in the Date modified column is not document metadata but your disk's note about when the file appeared on it. A completely clean file will have one too, and no amount of cleaning can remove it.

What a system check will not show

Simple checks have a limit, and it is fairer to say so upfront. Windows Explorer and macOS Preview display only the fields they know how to read — a common set, but not all of them. Rare or non-standard blocks may not make the list.

So empty properties are a good sign rather than strict proof. If you need strict verification, a dedicated metadata reading utility is the way; for everyday purposes the methods above are enough.

Frequently asked questions

• Why did the cleaned photo change size? That is expected: the embedded preview thumbnail goes along with the service fields. Files usually get a few dozen kilobytes lighter.
• Width and height are still in the properties — did cleaning fail? It worked. Frame dimensions are part of the image itself, not information about you, and cannot be removed.
• The modification date is still today. That is a file system stamp, not metadata. There is no date inside the file.
• Can the removed fields be recovered? Not from the cleaned copy — they are never carried into it. Your original file with all its data stays on your device, so nothing is lost if you need it.
• Do I need to check every file? Spot checks are enough. Processing is identical for every file of the same type, so if it worked on one photo it works on the rest.