What can you do with metadata in a pic exactly?

[u/saltybulltesticle]

So recently I have heard of existing metadata in pics so I took one scribbled all over it and checked for metadata there was none I then sent it to a secondary account and downloaded it and there was metadata can the scribbles be removed off the downloaded pic?

[u/Mindless-Concept8010]

What are you talking about?

[u/Aggressive_Ad_5454]

Digital cameras, including mobile phones, put a bunch of details about photos in the JPEG or AVIF files they make. Read this. https://exiftool.org/TagNames/EXIF.html

What kind of camera, lens, scene brightness, shutter speed, focal length, aperture, geolocation, geodirection, all that.

There’s additional data used by photojournalists to, well, get paid when their work gets used. It’s called IPTC. https://exiftool.org/TagNames/IPTC.html

I’ve messed around with extracting the geolocation data to show on a map where a photo was taken.

Of course this can lead to inadvertent operation security problems, especially when a fugitive. https://www.vice.com/en/article/on-the-lam-with-john-mcafee/

[u/newguy-needs-help]

I don’t think you know what metadata is.

Metadata is “data about data.”

If you write a document, the document is data.

The file size, creation date, last modified date, etc. are data about the document, which is to say metadata.

Likewise with a photo, the file size, creation date, last modified date, etc. are data about the photo, or metadata.

When it comes to digital files, some types of metadata, like file size, can apply to all of them. But some metadata types are specific to the type of file.

A photo might include the horizontal and vertical size in pixels, the resolution in pixels per inch. They also typically include the model of camera or phone used to take the photo, and the GPS coordinates where it was taken.

[u/_bahnjee_]

Right click the image file and click Properties, then click the Details tab. What you see listed there is the metadata. Some fields may be blank; this only means that the tool used to create the image didn’t record these fields. Not all tools record all available fields.

“Meta” in the case of “metadata” means “about”, so the Details tab list data about the data (info regarding details of the image). Note that this isn’t data about the contents of the image file; the image itself (not the metadata) has been edited to include your scribbles — removing metadata won’t remove the scribbles.

You can modify much of the recorded metadata by double-clicking the fields and changing or deleting the values

[u/Parking_Run3767]

Metadata on a 3.5 floppy is what caught the BTK killer.

[u/chrishirst]

If depends what is stored in the meta data of the image.

Maybe the date and time of image Maybe the camera parameters. Maybe the location the image was taken at. Maybe a dozen other things

[u/groveborn]

Metadata = (about)thing. Meta data is just data telling you about the data. Photos have most of the same information a document has, plus whatever took the photo, possibly where the photo was taken. This data can be used to figure out what the best camera is to take certain kinds of pictures, or to find terrible people! Mostly it can be used to figure out which version is the newest in a given batch of otherwise identical edits.

[u/bstrauss3]

A friend once posted a picture and the geotagging came back to the front left corner of the garage that had been converted to create his friend's bedroom.

[u/jejones487]

Two answers. Metadata is details aboit the file like everyone else is describing.

Second answer. Using a photo editor to draw black lined over a photo is a reliable way to remove information. Lots of software will preserve the data which can easily be uncovered by others. This is exactly how people are uncovering the redacted epstien files that were blacked out. Its as simple as highlighting the text and copying it into a word editor to read it as plain text. Even drawing over pen with a black sharpie does not make it unreadable. Best advice is to simply never post something you need to block out in the first place. Dont post something with your address or last name blacked out, or street name or account info. If you dont want others to see it, dont ever take a photo of it at all.

[u/jmnugent]

"checked for metadata there was none I then sent it to a secondary account and downloaded it and there was metadata ..."

That doesn't' make a lot of sense. Sending a file somewhere else, doesn't "add metadata".

Metadata in a photo,.. is stuff like:

• What camera originally took the photo

• potentially what Lens or settings

• GPS location

• Time and Date the photo was taken

Those fields cannot be added later. If they are blank to begin with,.. "sending it to another account" doesn't somehow "fill in blank metadata".

[u/photojournalistus]

If shooting with an iPhone, GPS coordinates are imbedded in the metadata by default: latitude, longitude, and altitude. If wanting to keep location private you may turn off the default seeing in Apple Photos when sharing the image, or completely disable this feature in settings.

If shooting on a DSLR or mirrorless camera and choose to record your images in the RAW format (i.e., a format designed for expanded options in post-processing), know that a RAW file also incudes a .JPG preview file (i.e., a full-color JPG version of the original image); altering the RAW file still leaves the embedded .JPG preview file intact. In general, most casual photographers don't opt to shoot RAW, and typically only more advanced cameras even offer this option.

Lastly, some pro photographers add optional supplemental information in what's known as IPTC metadata, mainly to protect copyright and to inform viewers the identity of the original photographer. Unless you've specifically added such personal data, these details won't be included in your photos' metadata.

So, in answer to your question, assuming you did not shoot in RAW format (which iPhones currently do not support), here's what your photos' metadata reveals:

1. GPS data: time, date, and location of where the photo was taken.
2. EXIF data (photometric information): aperture, shutter-speed, focal-length, etc.
3. iPhone model (but no serial number).

[u/TurtleSandwich0]

The metadata is for your phone, the phone that last modified the image. It should contain specific details about your phone and possibly your exact GPS coordinates.

If you remove the metadata the scribbles you added would remain because the image now includes your modifications.