What Your PDFs and Photos Carry, and How to Clear It

Metadata is the information a file carries about itself rather than in itself: who made it, when, with what, and in the case of a photograph, where. It travels with the file through email, cloud links and direct transfers, and it is visible to anyone who thinks to look — usually in a properties dialog they already have.

Both tools for this run in your browser: the PDF metadata tool shows and clears a document's fields, and the image metadata remover strips EXIF from a photo. Neither uploads the file, which is the only sensible arrangement — sending a photo to a server to have its location removed hands the location to that server first.

What is actually in there

A PDF carries an author field, usually filled in from the account name on the machine that made it; a title, which is often the name of the template it came from rather than the document; a producer and creator naming the software and version; keywords and a subject, if anyone set them; and creation and modification timestamps.

A photograph carries considerably more. EXIF records the camera make and model, lens, exposure settings, orientation, the exact capture time, and — the one that matters — GPS coordinates, often accurate to within a few metres. Some cameras include a serial number. Editing software adds its own fields, and phones frequently store a thumbnail alongside the image.

The consequences are ordinary rather than dramatic. A proposal that displays another client's name in a browser tab because the title field was never changed. A document described as freshly prepared and stamped as modified eleven months ago. A marketplace listing photographed indoors carrying the coordinates of the room.

Seeing it first

Look before you clear, because the volume is usually more than people expect and it is what makes the habit stick.

For a PDF, any reader shows most of it under File → Properties — worth knowing because it means every recipient of your documents can see these fields without any special tool. The metadata tool lists everything embedded, including fields readers do not display.

For a photo, Windows shows a subset under right-click → Properties → Details, and macOS under Tools → Show Inspector in Preview. The image tool reports the location, device and timestamp fields it finds before you decide.

Removing it from a PDF

Load the file into the PDF metadata tool, review what it holds, and clear the fields. The pages, fonts and images are untouched, so the document is visually identical and only slightly smaller.

Editing is often the better choice than clearing for anything client-facing. A blank title field means some systems display the filename instead, which is rarely what you want — setting a proper title and author is more professional than leaving both empty.

Removing it from photos

Load the image into the metadata remover and download the cleaned copy. Every EXIF field goes, GPS included, and the picture itself is unchanged — metadata is stored separately from the image data, so there is no re-compression and no quality loss.

Two things people try instead, both worse. Screenshotting a photo does remove the original EXIF, but it also re-compresses the image, loses resolution, and produces a file with metadata of its own. And relying on the destination to strip it is a bet on someone else's policy: the large social platforms usually do, but email attachments, cloud share links, direct transfers and most forums do not.

Location on an iPhone

iOS can strip location at the point of sharing, and it is worth knowing because it is fewer steps than anything else. In Photos, select the image, tap Share, then tap Options at the top of the share sheet and turn Location off. That applies to that share only.

To stop it being recorded at all: Settings → Privacy & Security → Location Services → Camera → Never. Photos taken from then on carry no coordinates, and existing ones are unaffected.

Neither removes the other EXIF fields — the device model and timestamps stay — so for a photo going somewhere public, stripping it properly is still the thorough option.

What survives other operations

This is the part that catches people, and it is worth stating plainly: metadata sits outside the page content, so operations on the content do not touch it.

Redacting a document removes text from the page and leaves the author, software and timestamp fields exactly as they were. Splitting a PDF gives every extract the original's metadata. Compressing one keeps it. Merging documents produces a file carrying metadata from the process that made it.

So on anything being sanitised, the properties are a separate and final step. Redact, then clear the metadata, then send — in that order, because doing it the other way round means the redaction step reintroduces nothing but the export step might.

Frequently asked questions

How do I remove metadata from a PDF?

Load it into the metadata tool, review the fields — author, title, subject, keywords, creator, producer and timestamps — and clear them. The pages themselves are untouched, so the document is visually identical.

How do I remove the location from my photos?

Strip the EXIF with the metadata remover, which removes the GPS coordinates along with the rest. On an iPhone you can also turn Location off under Options in the share sheet, though that leaves the other fields in place.

Does removing metadata change the image or the document?

No. Metadata is stored separately from the picture data and the page content, so removing it changes the file size slightly and nothing else. There is no re-compression and no quality loss.

Does redacting a PDF also remove its metadata?

No, and this catches people out. Redaction works on the page content; metadata sits outside it. Anything being sanitised needs both steps — and the same applies to splitting, merging and compressing, all of which preserve it.

Do social media sites remove metadata for me?

The large platforms usually strip it on upload, but that is someone else's policy and it varies by service and even by upload route. Email attachments, cloud share links and most forums preserve it. If it matters, remove it before the file leaves your device.

Can I edit metadata rather than delete it?

Yes, and for client-facing documents it is often better. A blank title field means some systems display the filename instead. Setting a proper title and author is more useful than leaving both empty.

Is my file uploaded to have its metadata removed?

No — both tools run in your browser. That is the only sensible arrangement: sending a photo to a server to have its location stripped would hand the location to that server first.

In short

Look at what a file carries before you clear it — the amount is usually the surprise. And remember that metadata survives redacting, splitting, merging and compressing, so on anything sensitive it is a separate, final step.

Written by Mehran

Founder of QuickMerge. Practical guides built around the real behavior and limits of the tools. Connect on LinkedIn.